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Search results “Precious metals mining extraction and processing times”
Rock to Iron
 
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I extract metallic iron from the ground using some chemistry and a new induction heater. At some point I'll get around to turning the pig iron into steel and making something from it. More on the generator that My dad rebuilt: https://www.youtube.com/watch?v=QGL6hp8DSVg Help me buy new crucibles by donating here: https://www.patreon.com/CodysLab
Views: 2192161 Cody'sLab
Complete gold recovery processing line for gold ore
 
06:38
We had a customer send us some very high grade gold quartz ore which we recovered 1.310 troy ounces from only 300 lbs! We ran the quartz through our 1/2-1 ton per hour complete turnkey processor comprised of out jaw crusher, hammer mill, and shaker table modules. The system did a good job of crushing and pulverizing the ore, but the shaker table did a remarkable job of recovering lots of gold that was smaller than 325 mesh. For more information please call or email: Phone: 360-595-4445 Email: [email protected] Website: http://www.MBMMLLC.com Facebook: https://www.facebook.com/MBMMLLC
Views: 85176 mbmmllc
Silver Mining | The Search for the Gleaming Metal | World Documentary Films
 
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Silver Mining | The Search for Gleaming Metal | World Documentary Films Silver mining is the resource extraction of silver by mining. Silver is found in native . Silver Mining | The Search for Gleaming Metal | World Documentary Films Silver mining is the resource extraction of silver by mining. Silver is found in native . The collapse is coming and it cannot be stopped, says Rob Kirby from Kirby Analytics.com. Rob pulls no punches in this one as we talk about the dismal state of . The collapse is coming and it cannot be stopped, says Rob Kirby from Kirby Analytics.com. Rob pulls no punches in this one as we talk about the dismal state of .
Views: 32365 HD Documentary Films
Ancient gold smelting rare today. extract recovery process of refining gold to remove any impurities
 
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►► http://www.goldextractionprocess.com Smelting of rare antique gold. The process of refining gold to remove any impurities that may be found intermixed with the noble metal is an ancient practice that has long been employed by diverse cultures. One of the earliest gold refining equipments employed by ancient metallurgists was the blast furnace – by then a rudimentary structure built with clay, stone, or roughly hewn rocks which were fed with wood or an assortment of biofuels derived from the dried fecal matter of animals. The blast furnace was used in tandem with the crucible, one of the oldest and perhaps still widely used metallurgical instruments to this day. With the methods of gold refining being perfected through the decades, even rustic objects such as clay pots and later on, cast iron equipment were employed in the quest for purer and finer examples of gold. Ancient gold smelting rare today. extract recovery process of refining gold to remove any impurities Archimedes Channel Update video clip. Gold Recycle Finding gold Electronic Waste hidden. extract gold process, gold recovery process, refining process of gold video. Subscribe to this ►► https://goo.gl/93XuWY ✔️ THANK YOU ✔️ #GoldSmelting #ArchimedesChannel
Views: 1204051 Archimedes Channel
Urban Mining - Gold in our trash - VPRO documentary - 2015
 
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Our waste is worth money. Recovering it has started up a new global industry worth billions. It is called Urban Mining and it appears to be the solution for many of our environmental problems and our energy needs. And it is hot. A ton of broken mobile phones, computers or other electronic waste contains sixty times the amount of gold a ton of gold ore has. Moreover, it is easier to get at. It is estimated that 30 to 40 percent of total world demand for rare metals can be covered by urban mining and this is only the beginning. Urban Mining has a different, almost hilarious consequence: for years we have dumped our electronic waste in developing countries, with our eyes closed. There, it was to be recycled. But in Africa only one quarter of the gold, platinum and coltan is recovered whereas the newest technology in Belgium recovers almost 99 percent. So somewhere there’s a profit to be made. The NGO ‘Closing the Loop’ is buying up dead mobile phones and computer parts that we have dumped in developing countries making our waste a desirable sales item over there. Originally broadcasted by VPRO in 2015. © VPRO Backlight March 2015 On VPRO broadcast you will find nonfiction videos with English subtitles, French subtitles and Spanish subtitles, such as documentaries, short interviews and documentary series. VPRO Documentary publishes one new subtitled documentary about current affairs, finance, sustainability, climate change or politics every week. We research subjects like politics, world economy, society and science with experts and try to grasp the essence of prominent trends and developments. Subscribe to our channel for great, subtitled, recent documentaries. Visit additional youtube channels bij VPRO broadcast: VPRO Broadcast, all international VPRO programs: https://www.youtube.com/VPRObroadcast VPRO DOK, German only documentaries: https://www.youtube.com/channel/UCBi0VEPANmiT5zOoGvCi8Sg VPRO Metropolis, remarkable stories from all over the world: https://www.youtube.com/user/VPROmetropolis VPRO World Stories, the travel series of VPRO: https://www.youtube.com/VPROworldstories VPRO Extra, additional footage and one off's: https://www.youtube.com/channel/UCTLrhK07g6LP-JtT0VVE56A www.VPRObroadcast.com Credits: Director: Frank Wiering Research: Olaf Oudheusden Producer: Jenny Borger Editors: Marije Meerman, Doke Romeijn English, French and Spanish subtitles: Ericsson. French and Spanish subtitles are co-funded by European Union.
Views: 60184 vpro documentary
MBMM Euro Trip Part 1: Processing PCB Boards for Copper and Precious Metal Recovery
 
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Our the first stop on our whirlwind tour of Eastern Europe visiting MBMM clients and learning how they are using our turn-key printed circuit board processor. They are reporting a 99% recovery rate of all the metals by using the printed circuit board processor. For more info please email or call: Email: [email protected] Phone: 360-595-4445 Website: http://www.mbmmllc.com/ Facebook: https://www.facebook.com/MBMMLLC Instagram: https://www.instagram.com/mbmmllc/ Twitter: https://twitter.com/MBMMLLC
Views: 8857 mbmmllc
Precious Metal Refining & Recovery, Episode 7: Fining Silver
 
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I refine some silverware into a pure silver bar. There seems to be some missing video at around 7:12 not sure why... This has happened before. There is nothing important so I have instructed YouTube to just remove the blank segment, lets see if they do it. Water into acid: https://www.youtube.com/watch?v=_f0vK8Wffgg Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 793068 Cody'sLab
Gold recovery of crushed motherboards from MBMMLLC
 
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This video is the first of two to discuss the recovery process from motherboards that have been sent through a crusher and then a shaker table. Also are some other great gold bearing materials provided by Jason Gabor at Mount Baker Mining and Metals LLC. Here are some links to videos from MBMMLLC: Link to the hammer mill/shaker table board grinding process: https://www.youtube.com/watch?v=N5GBGbcDY6c Link to gold ore processing: https://www.youtube.com/watch?v=NlAXVFFFiEI Link to smelting black sands part 1: https://www.youtube.com/watch?v=ko608Ti7lcs Link to smelting black sands part 2: https://www.youtube.com/watch?v=cnJeK9CwkiU
Views: 25349 Moose Scrapper
Processing 1lb of GOLD ORE from Prestige Minerals on Amazon
 
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How to chemically extract gold: https://www.youtube.com/watch?v=EsnAM2jeFuM Equipment Used in Video: Pans used in video: https://amzn.to/2wmj2Kv That Awesome Squirt Bottle: https://amzn.to/2jDijeK Hydrochloric Acid: https://amzn.to/2J9r1zJ Snuffer Bottle: https://amzn.to/2KPGUYH Arbor Fabricating Classifiers - Use Discount Code: "SKPROSPECT": http://arborfab.com/105-X-5-Prospecting-Filter-7-Mesh_p_125.html KleshGuitars Merchandise: https://www.justgraytshirts.com/ Use Discount Code KLESH10 - free shipping in the US and Europe! Other Platforms: Steemit: https://steemit.com/@kleshguitars Facebook: https://www.facebook.com/KleshGuitars/ Instagram: https://www.instagram.com/ript2shrds/ Twitter: https://twitter.com/shaneklesh KleshGuitars 12081 West Alameda Pkwy #141 Lakewood, CO 80228 Support my work via donation: Patreon: https://www.patreon.com/KleshGuitars Bitcoin: 18ZgbM9azxrfJdv54Nw9VjAfBmEn8So7DR Etherium: 0xb1AB79833f70E0CA93C537462FcFbe627bDb5E53 Litecoin: LSKrBJMMBGmBLN5GNVq5fiwkak6z4YTxj5 PayPal: [email protected] Live Stream Channel: "KleshGuitars TV" https://www.youtube.com/channel/UC7eN3k0jqA9D6XJDOw_23vA Background Music by: Cooper Hopkins Soundcloud: https://soundcloud.com/cooperhopkins YouTube: https://www.youtube.com/channel/UC-lO8iuS6xWhqJofZDrSjwg/videos
Views: 9642 KleshGuitars
The Process of Excavating and Refining Gold
 
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How gold is produced, from excavation to ingot-form.
Views: 435210 Triwood1973
The Manado Method (English Version)
 
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This video shows a environmentally-friendly method of gold recovery that can eliminate the use mercury in artisanal gold mining. It shows how gold recovery and incomes can be greatly improved while also saving the environment and protecting community health.
Views: 104348 YTSMedia
Gold Ore, Silver Ore and Platinum Group Metals Ore Explained
 
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Silver, Gold, and Platinum group metals ores are presented in this second video which educates viewers on exploration and mining of precious metals ores. This is the Mineralogist's focus on the world of precious metals. The series intends to showcase the variety of career opportunities across all disciplines within the unique and exciting world of the precious metals industry. ipmi.org
Views: 122075 TheIPMI
How to Refine and Melt Platinum - Tutorial part 1
 
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http://www.goldnscrap.com Platinum Refining Tutorial - part 1. A complete process is demonstrated: - cleaning & Dissolution with Aqua Regia. - Precipitation. - Calcining. - Melting Learn more about Gold, Silver and Platinum group metals Recovery and Refining methods and process. http://www.goldnscrap.com Resource for this work: Refining Precious Metal Wastes - c.m. Hoke The Recovery and Refining of Precious Metals - C. W. Ammen The "gold refining forum"
Views: 608170 indeedItdoes
Kenya Miners Part 1: Mining underground by hand for gold bearing quartz viens
 
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This is our first video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 5472 mbmmllc
HowStuffWorks - Ore to Steel
 
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Turning low grade iron ore into the most used metal in the world is no easy task. Learn how this hot process works on Discovery Channel's "HowStuffWorks" show. Watch more at http://dsc.discovery.com/tv/how-stuff-works/how-stuff-works.html
Views: 270388 Discovery
Metal Refining & Recovery, Episode 21: Separate Gold From Sand With Heavy Liquid
 
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I put one of my heavy liquids to work. Making the liquid: https://www.youtube.com/watch?v=gwJyzsSjJrE Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/
Views: 279420 Cody'sLab
How to extract Silver from a Coin (or other silver containing material)
 
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In this video I show you how to extract silver from a coin or other metallic material. The coin that I used is 50% copper and 50% silver. I loosely followed the procedure from here: http://www.abovetopsecret.com/forum/thread810904/pg1
Views: 255571 NileRed
How to Refine and Melt Platinum - Tutorial part 2
 
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http://www.goldnscrap.com Platinum Refining Tutorial - part 1. A complete process is demonstrated: - cleaning & Dissolution with Aqua Regia. - Precipitation. - Calcining. - Melting Learn more about Gold, Silver and Platinum group metals Recovery and Refining methods and process. http://www.goldnscrap.com Resource for this work: Refining Precious Metal Wastes - c.m. Hoke The Recovery and Refining of Precious Metals - C. W. Ammen The "gold refining forum"
Views: 227149 indeedItdoes
How To Recover Gold From Computer Scrap with Household Chemicals
 
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To contribute: https://paypal.me/sreetips?locale.x=en_US Computer scrap has an undeterminable amount of gold. This enables sellers to charge, and get, from two to ten times what the scrap is worth in terms of the amount of gold that it contains. This video shows that it's not easy to get the gold and that the amount of gold yielded is very low. Now you have a place to look BEFORE you spend your hard-earned money on this kind of over-priced scrap.
Views: 5844702 sreetips
The Diamond process from the Mine to the Market
 
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Learn about the diamond manufacturing process from the mine to market. http://www.DiamondonNet.com/
Views: 737272 Don DiamondonNet
Cyanidation carbon in pulp gold extraction process
 
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Cyanidation machine supply please contact email: [email protected]
Views: 9267 Rocky Chen
Kenya Miners Part 2: Crushing, grinding the ore, and sluicing gold the traditional African way
 
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This is our second video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 13692 mbmmllc
silver ore smelting
 
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Smelting Silver Ore with the KK-6
Views: 424866 microwavegoldkiln.com
Where does gold come from? - David Lunney
 
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View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclysmic stellar explosions called supernovae. CERN Scientist David Lunney outlines the incredible journey of gold from space to Earth. Lesson by David Lunney, animation by Andrew Foerster.
Views: 3187660 TED-Ed
Gold Fingers - How to Recover Gold from Electronic Scrap
 
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http://www.goldnscrap.com In this video tutorial i'm showing how to recover gold from electronic circuit board scrap. Specifically the gold plating that is found on the board connector edge - A.K.A the "fingers". This video is a complementary to the complete written tutorial on Gold-N-Scrap website (direct link below) The process applies to other kinds of gold plated itmes, given the substrate is unreactive (such as PCB, ceramic, glass etc'...). This process is less suitable for metallic items that are gold plated such as gold plated pins and gold filled items, though it will work with much effort and large consumption of acid. Post a comment and let us know how much gold do you think this recovery process yielded. Click here to view the complete tutorial on Gold-N-Scrap: http://www.goldnscrap.com/index.php/find-scrap-circuit-boards-auctions-at-ebay-and-learn-how-to-evaluate-prices/99-gold-fingers-how-to-recover-gold-from-electronic-scrap With special thanks to the fine members of the Gold Refining Forum: http://www.goldrefiningforum.com ----------------------------------------------------- Here's a list of all the required equipment and chemicals for the Copper Cholride etching process shown in this video: Pls note, the below links are an affiliation links to Amazon - Every purchase made through these links will help support Gold-N-Scrap. Although much work and thought was put in this list, you must keep in mind that the following listed products may not nessecerly be the best or the cheapest. PYREX Griffin Low Form 1000mL Beaker Graduated Ea - http://amzn.to/1sJH6eJ PYREX Griffin Low Form 1000mL Beaker Graduated 6pk - http://amzn.to/1w0X3kI PYREX Griffin Low Form 2000mL Beaker Graduated Ea - http://amzn.to/1r6sYsX PYREX Watch Glass 75 mm - http://amzn.to/1uyaK4S PYREX Watch Glass 100 mm - http://amzn.to/1COV6Xi PYREX Watch Glass 150 mm - http://amzn.to/1whqQmR Glass Erlenmeyer Flask Set - 3 Sizes - 50, 150 and 250ml - http://amzn.to/122AX4C Glass Erlenmeyer Flask Set - 5 Sizes - 50, 150, 250, 500, & 1000ml - http://amzn.to/1wsddC5 Clear Vinyl Flexible Tubing 5/32" ID 50 ft - http://amzn.to/1r6zDmZ DC 6V Mini Air Pump Motor for Aquarium Oxygen Circulation - http://amzn.to/1ziVfWg Stamped Steel Support Stand with 3 Rings, 8" Length x 5" Width Base Size - http://amzn.to/1s1FskQ Sprayer Bottles 24 Oz. Pack Of 3 Pcs - http://amzn.to/1tHGZUN HDPE Plastic Funnel 180 mm (Pack of 5) - http://amzn.to/1t87K2l Polypropylene 4 Piece Lab Funnel Assortment - http://amzn.to/1w1jKoR Whatman Qualitative Circle Filter Paper 8?m Pore Size, 150mm Diameter (Pack of 100) - http://amzn.to/1x3Nb6j Filter Paper Qualitative Medium 18cm - http://amzn.to/1nxGzxe Filter Paper Qualitative Medium 24cm - http://amzn.to/1w1mbI7 Single electric Hot Plate Black - http://amzn.to/1FvEsQE Double electric Hot Plate Black - http://amzn.to/1tHKLNZ Plastic Transfer Pipettes 3ml, Graduated, Pack of 100 - http://amzn.to/1yUozRQ HYDROCHLORIC ACID 20 Be. Technical grade One gallon bottle - http://amzn.to/1CPgXOb Nitric Acid 475ml/16oz 67.2% Industrial Grade - http://amzn.to/1vGxAeL Sulfuric Acid 98% 950ml Bottle - http://amzn.to/ZMnvjS Sodium Metabisulfite Food Grade 98.6+% 1 lb - http://amzn.to/1tHM7bv
Views: 7730082 indeedItdoes
How to extract silver from mine
 
02:06
Fantastic
Views: 92269 ginzan2009
Precious Metal Refining & Recovery, Episode 5: Recovering gold from RAM
 
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I use Cyanide and Iodine to remove gold from cold coated computer parts. Next week I'll tackle metal pins. Cyanide videos: Cody; https://www.youtube.com/watch?v=VUeooyhD5Xk NurdRage; https://www.youtube.com/watch?v=xz7i11XC9wk Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 1318950 Cody'sLab
Kenya Miners Part 3: Mercury recovering gold from sluice cons, then burning to get salable gold
 
08:40
This is our third video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 35306 mbmmllc
Making History - Malachite & Copper
 
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Early humans quickly find valuable uses for the first metals. The discovery of copper marks the end of the stone age and entry into more prolific times.
Views: 181466 AllHistories
Processing Facility Capacities - Preliminary Estimates
 
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http://GoldMiningProperty.blogspot.com/ to know the opportunity 50K if find new owner for 14M Mine in a precious metal trend. Approx 450 pages of log books, geological studies, satellite, aerial, history of mine available to serious inquiries. http://GoldspringReport.blogspot.com Current Reports http://www.comstockgold.blogspot.com Goldspring found a deposit of gold and silver mineralization in the same geological structure and downhill from historic bonanzas depicted in illustrative section drawing. http://GoldspringInfo.blogspot.com SEC Filings including Graphic Presentations http://GoldspringFacts.blogspot.com Radio & Webcast Interviews with Goldspring CEO and COO http://www.mymusicstream.com/artist/1947/index.php Company Website http://Goldspring.us Google Map: 1200 American Flat Rd, Gold Hill, Nevada 89440 Hartford Hill open pit mines to the southeast of American Flat Rd. Feature Videos http://www.YouTube.com/Goldspringinc Short topical videos about Goldspring Inc http://www.YouTube.com/Scheqky We can implement an internet architecture like this for your company http://Exploration-News.blogspot.com to illustrate the equipment you manufacture, exploration or mineral reserve. ----- Merrill-Crowe Precious Metal Ore Chemical Extraction Process developed in the late 1800s. Cyanide in "Barren" Solution scavenges/leaches gold & silver from low grade ore into the "Preg" Solution (Impregnated w/Precious Metals). Solution cleansed of dirt. Powdered Zinc is induced. Cyanide leaves chemical hold of gold & silver. Zinc chemically bonds to the PM. Zinc-PM is trapped on fine filters, scrapped off. Zinc separated from Precious Metals by a process using heat. Molten Gold is poured into Dore' & sent to a refinery to achieve a higher purity level. Merrill-Crowe (M-C) Circuit - recovers precious metals from solution by first clarifying the solution, then removing the air contained in the clarified solution, and then precipitating the gold and silver from the solution by injecting zinc dust into the solution. The valuable sludge is collected in a filter press for drying and further treatment. InsideMetals - Milling - Heap Leaching - Mining Glossary http://www.insidemetals.com/index.php?view=mining_glossary A precipitation process to recover precious metals using zinc dust to treat a deoxygenated precious metals-cyanide solution. This is most applicable to ores with higher silver content. from a glossary of common mining terms http://www.trustingold.com/content/view/32/51/ Summary of Known Gold and Silver Smelter and Refineries, 18 pages, a springboard to study Mining Locations for Precious Metal Investors http://www.epa.gov/epaoswer/other/mining/minedock/id/id4-au.pdf Modern Improvements - US Patent 5336474 - Process for Leaching of Precious Metals The present invention relates to a process for leaching of precious metals (e.g., gold and/or silver) from particle-shaped, solid materials, particularly ores and ore concentrates. The process includes the use of a cyanide-containing alkaline leach solution in the presence of a peroxo compound releasing oxygen. The present invention also relates to a process for leaching of such precious metals from ores, ore concentrates and waste material from previous incomplete leachings by grinding of the material to be leached in the presence of a cyanide-containing leaching solution which has a pH value of 8 to 13 and which contains a peroxo compound. http://www.patentstorm.us/patents/5336474/description.html Univ of N Carolina (UNC) Thesis explains the Merrill-Crowe process with a good diagram on the last page http://education.uncc.edu/cmste/summer/2005%20Rocks%20&%20Minerals/Cyanide%20in%20Gold%20Mining.doc UNC Charlotte, 9201 University City Boulevard, Charlotte NC 28223 Abbreviations -------------- Atomic chart element symbols: "Au" for Gold, and "Ag" for Silver. Silver quantities range from 4 to 20 times that gold in a ton of ore, historic Comstock One overall average is 4:1. 2005 Goldspring Exploratory Mine, Billy the Kid Open Pit, ratio of silver to gold was similar. "Barren" Solution: Vast quantities of water with a very low content of cyanide. "Preg" Solution: Barren Solution after it has been sprinkled on ore where it leaches gold and silver from ore Impregnated with Precious Metals. PM: Precious Metals Video portion #11 May 9, 2008 Comstock NV Mine Tour by Bob Lanaham ------ Travel to Goldspring http://TraveltoGoldspring.blogspot.com Opinion Poll about Goldspring http://GoldspringPoll.blogspot.com Photos, Historic Charts, Maps by Bob Lanaham on May 9, 2008 Mine Visit http://picasaweb.google.com/Scheqky.Goldsprings/ShareholderMineTourHighResPhotos http://picasaweb.google.com/Scheqky.Goldsprings/May92008GSPGMINEVISITPHOTOSByBOB Historic Virgina City and Goldhill, Nevada Photos http://picasaweb.google.com/Scheqky.Goldsprings Common stock symbol: GSPG.OB
Views: 7372 Scheqky
Precious Metal Refining & Recovery, Episode 16: Aluminum From Dirt
 
17:54
I make aluminium metal from dirt. there are a lot of chemicial reactions in this video, here is a list of the main ones: feldspar to clay; 4KAlSi3O8 + 4H+ + 2H2O = 2K+ +Al4Si4O10(OH)8 +8SiO2 clay to aluminium hydoxide and silicious acid (unbalanced); Al4Si4O10(OH)8 + H2O + H+ = Al(OH)3 + H2SiO4 Aluminium hydroxide forming from aluminium chloride; AlCl3 + 3 NaOH = 3 NaCl + Al(OH)3 aluminium hydroxide calcination; 2Al(OH)3 = Al2O3 + 3H2O eletrolisis of cryolite solution (overall); Al2O3 + 3 C = 2 Al + 3 CO Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 908555 Cody'sLab
Making copper the ancient way
 
06:06
This summer we made several experiments reducing malachite (copper carbonate) to genuine copper with blowpipes in open fire pits. Now we know that it is possible to make metallic copper only using lung power and Copper Age equipment. This video was meant as documentation of an archaeological experiment. Thanks to all visitors who added relevant comments by now! But: As more and more stupids felt called to misuse the comment function as a trash dump of their verbal diarrhea, today I decided to switch it of, sorry, folks! My life´s too short for this.
Views: 380472 ulfr23
Precious Metal Refining & Recovery, Episode 14:Gold From Dishes
 
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I recover the gold from some gold rimmed plates and cups. How to make cyanide: https://www.youtube.com/watch?v=VUeooyhD5Xk Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 689244 Cody'sLab
Dissolving Gold in Mercury
 
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Follow me on Instagram: https://goo.gl/5oQiWQ Follow me on Twitter: https://goo.gl/uCmnV4 ----------------------------------------- Okay, so we are not truly dissolving the gold, we are actually forming an alloy between the gold and the mercury (called an amalgam). This process is not only cool to look at, but it also is really useful to extract gold from ore. The gold-mercury amalgam can then be isolated and the mercury is boiled off or removed chemically. This leaves behind relatively pure gold. Outro music: https://soundcloud.com/sorrysines
Views: 1253236 NileRed
Precious Metal Refining & Recovery, Episode 1: Recovering Gold From Electroplating Waste
 
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I recover the gold that I used when I was attempting to plate my bumper. see videos a day early here: https://www.patreon.com/CodysLab
Views: 569299 Cody'sLab
How To Recover Gold From Computer Scrap is veritable gold mine with Household Chemicals. recycling
 
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How To Recover Gold From Computer Scrap is veritable gold mine with Household Chemicals. recycling. Your old cpu computer is a veritable gold mine. Recovery of gold from e waste Electronic waste containing gold. Archimedes Channel Update new video clip. Gold Recycle Finding gold Electronic Waste hidden. rare animal bizarre. Computer scrap has an undeterminable amount of gold. This enables sellers to charge, and get, from two to ten times what the scrap is worth in terms of the amount of gold that it contains. This video shows that it's not easy to get the gold and that the amount of gold yielded is very low. Now you have a place to look BEFORE you spend your hard-earned money on this kind of over-priced scrap. The Gold Extraction Process. To recover recyclable Gold, professionals use a Gold extraction process to remove the metal from items such as computer mother boards and jewelry settings. ... Gold melting typically involves a crucible and the temperature required to melt it depends on its purity. Hope you like our compilation, please share it and SUBSCRIBE! Watch also our other videos! youtube Subscribe to this ►► Subscribe https://goo.gl/93XuWY ✔️ THANK YOU ✔️
Views: 397977 Archimedes Channel
What is COBALT?
 
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What is COBALT? Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought by alchemists to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes upon smelting. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold. Today, some cobalt is produced specifically from various metallic-lustered ores, for example cobaltite , but the main source of the element is as a by-product of copper and nickel mining. The copper belt in the Democratic Republic of the Congo, Central African Republic and Zambia yields most of the cobalt mined worldwide. Cobalt is primarily used in the preparation of magnetic, wear-resistant and high-strength alloys. The compounds, cobalt silicate and cobalt aluminate give a distinctive deep blue color to glass, ceramics, inks, paints and varnishes. Cobalt occurs naturally as only one stable isotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high energy gamma rays. Cobalt is the active center of coenzymes called cobalamins, the most common example of which is vitamin B12. As such, it is an essential trace dietary mineral for all animals. Cobalt in inorganic form is also a micronutrient for bacteria, algae and fungi.
Views: 13482 Knowledge Archive
The Devastating Effects Of Gold Mining
 
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How Algae Could Change The Fossil Fuel Industry https://www.youtube.com/watch?v=yCNkmi7VE0I » Subscribe to NowThis World: http://go.nowth.is/World_Subscribe Gold has been a valuable commodity for centuries, but the process to obtain it has dangerous costs. So what is true price of gold? Learn More: National Geographic: The Real Price of Gold http://ngm.nationalgeographic.com/2009/01/gold/larmer-text/3 Business Insider: The Cost Of Mining An Ounce Of Gold http://www.businessinsider.com/the-cost-of-mining-gold-2013-6 Al Jazeera: The true price of gold http://america.aljazeera.com/watch/shows/techknow/articles/2015/6/4/the-true-price-of-gold.html More from NowThis: » Subscribe to NowThis News: http://go.nowth.is/News_Subscribe NowThis World is dedicated to bringing you topical explainers about the world around you. Each week we’ll be exploring current stories in international news, by examining the facts, providing historical context, and outlining the key players involved. We’ll also highlight powerful countries, ideologies, influential leaders, and ongoing global conflicts that are shaping the current landscape of the international community across the globe today. Like NowThis World on Facebook: https://go.nowth.is/World_Facebook Connect with Judah: Follow @judah_robinson on Twitter – Facebook: http://go.nowth.is/LikeJudah Connect with Versha: Follow @versharma on Twitter – Facebook: http://go.nowth.is/LikeVersha http://www.youtube.com/nowthisworld
Views: 140063 NowThis World
Gold Recovery from Diabetic Test Strips
 
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Subscriber requested video. Is there gold in them thar strips? There sure is! How much? I couldn't tell you. I would need about 1000 of them to be able to figure that out. Here is the link to the video on precipitating the gold out. Thanks Del! https://www.youtube.com/watch?v=oL2Si9zTRx8
Views: 60058 Moose Scrapper
Tungsten  - The MOST REFRACTORY Metal ON EARTH!
 
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Patreon: https://www.patreon.com/Thoisoi?ty=h Facebook: https://www.facebook.com/thoisoi2 Instagram: https://www.instagram.com/thoisoi/ So, today I will tell you about the top refractory metal on Earth – tungsten. Tungsten is one of the transition metals, and is located in group 6 of the periodic table of chemical elements. It got it’s name from the mineral wolframite, from which this mineral is obtained. Also, a tiny fun fact, wolfram is a Swedish word. Now if we look at the appearance, tungsten looks like a shiny metal with gray tint, though if you hold a rod of tungsten in the hand you may experience one special characteristic. The density of tungsten is almost 20 grams per cubic centimeter, which is very close to the density of gold. That is the reason why tungsten was used for faking gold bars. A couple of years ago there was news that some gold bars had a filling of tungsten inside, which of course is significantly cheaper than gold. Though the forgery causes skepticism among some scientists. To clearly demonstrate to you how much is 20 gram per cubic centimeter, I will compare the mass of a rod of tungsten and a rod of magnesium. As you can see, the tungsten rod is not only several times smaller than the magnesium one, but is also even heavier than the latter. Also, tungsten is a fairly brittle metal, it is plastic only when it has a very high purity. In addition, tungsten has the highest tensile strength. However, this is not the main feature of this metal. To melt a piece of tungsten, you need to reach an extremely high temperature of 3422 degrees Celsius. That is why this metal was at first used as the filament in incandescent bulbs. However, if you pass a current through the thin tungsten filament, it can overheat and then break, thereby ceasing any production of light . All is due to the fact that in air tungsten oxidizes at a high temperature, forming on its surface oxides of tungsten. Also, the tungsten rod after calcination with a gas burner obtains beautiful colored stains, caused by the different thickness of the oxide film on the metal surface. However, in light bulbs it’s not really about the beauty, more about the ability to actually produce light, hence all the oxygen from the bulb is pumped out and is replaced with a mixture of nitrogen and argon under reduced pressure. In these circumstances, the filament can shine for quite a long time. Also another fun fact, when taking pictures of the the filament in macro I’ve noticed the difference of the more powerful old light bulbs and the less powerful modern ones. In the old light bulbs the filament is made simply in the form of a spiral, but it turns out the modern ones have a double helix, making the filament thinner, which creates more sections of uneven thickness in the yarn, which then leads to the more rapid failure of the bulb. From a chemical point of view, tungsten is fairly stable, it is not soluble in hydrochloric or sulphuric acids. And the most stable compounds of hexavalent tungsten, such as, for example, the sodium tungstate are used as a catalyst of epoxidation in the organic synthesis, andin manufacturing of pigments. Sodium tungstate is soluble in water, but instead of water I will use the 30% acetic acid to obtain the so-called tungsten blue pigment that has a very intense color. To do this, we’ll add a piece of magnesium to the test-tube. Magnesium reacts with acetic acid, releasing hydrogen, which in turn recovers tungsten from the hexavalent state to tungsten oxide 3 with an admixture of other oxides. The formed particles of oxides are of a small size, allowing them to form colloidal solution of a bright blue or blue-green color. The shade depends mainly on the acidity of the environment. The obtained tungsten blue can be used as a good dye for fabric, paper or other items that have the ability to adsorb particles of tungsten blue. The metal tungsten has a very high hardness and is hardly turned on the grinding wheel. Today tungsten finds many applications. First and foremost, this metal is used in filaments for the halogen lamps, refractory electrodes for argon-arc welding, as well as in hard projectile cores in some military shells. The most common substance of the tungsten compounds is tungsten carbide, which also goes by the name Pobedit but mainly in Russia (which if you translate that to English means “will win”). It is mostly used as a cutter when machining metals or stones because of its high hardness. Quality high hardness steel would almost always be composed of tungsten. So that’s what this metal tungsten is like, which is found in practically every house and has the most interesting and unique properties.
How to make iron in the old way
 
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During the Viking market at Foteviken Museum in Sweden in 2011, one Danish and two Polish Blacksmiths made ​​iron in the same old way that the Vikings did it one thousand years ago.
Views: 282901 Sven Rosborn
Metal Refining & Recovery,  Episode19: Gold From Mercury
 
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I clean out my distillation apparatus after distilling a large amount of mercury and recover the gold and silver. Help me make videos by donating here: https://www.patreon.com/CodysLab Or with bitcoin here: 1DZj7qCPJi46gQuqhLCdr1rXiaAHYSKm3T Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/
Views: 604370 Cody'sLab
Copper Through The Ages - The History Of Copper - History TV
 
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Copper Through The Ages - The History Of Copper - History TV Copper is a chemical element with symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a reddish-orange color. It is used as a conductor of heat and electricity, as a building material and as a constituent of various metal alloys, such as Sterling silver used in jewelry, cupronickel used to make marine hardware and coins and constantan used in strain gauges and thermocouples for temperature measurement. Copper is found as a pure metal in nature, and this was the first source of the metal to be used by humans, ca. 8,000 BC. It was the first metal to be smelted from its ore, ca. 5,000 BC, the first metal to be cast into a shape in a mold, ca. 4,000 BC and the first metal to be purposefully alloyed with another metal, tin, to create bronze, ca. 3,500 BC.[3] In the Roman era, copper was principally mined on Cyprus, the origin of the name of the metal, from aes сyprium (metal of Cyprus), later corrupted to сuprum, from which the words copper (English), cuivre (French), Koper (Dutch) and Kupfer (German) are all derived.[4] The commonly encountered compounds are copper(II) salts, which often impart blue or green colors to such minerals as azurite, malachite, and turquoise, and have been used widely and historically as pigments. Architectural structures built with copper (usually roofing elements) corrode to give green verdigris (or patina). Decorative art prominently features copper, both in the elemental metal and in compounds as pigments. Copper compounds are also used as bacteriostatic agents, fungicides, and wood preservatives. Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme complex cytochrome c oxidase. In molluscs and crustacea copper is a constituent of the blood pigment hemocyanin, replaced by the iron-complexed hemoglobin in fish and other vertebrates. In humans, copper is found mainly in the liver, muscle, and bone.[5] The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. Hence a healthy human weighing 60 kilogram contains approximately 0.1g of copper. However, this small amount is essential to the overall human well-being. Read More: https://en.wikipedia.org/wiki/Copper Subscribe For More Documentary Films: http://www.youtube.com/channel/UCsc7tosS2c0T-4_y94j23vw?sub_confirmation=1
Views: 9616 History TV
Tutankhamen's Dagger Is Made From "Alien Gold"?
 
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Support Us On Patreon: https://www.patreon.com/MysteryHistory We Are Also On Steemit: https://steemit.com/@mysteryhistory During the reign of king Tut between 1333 BC and 1324 BC, the understanding of iron metallurgy, or indeed the casting of such objects was very limited. Iron smelting is the extraction of usable metal from oxidized iron ores. It is vastly more difficult than smelting tin and copper, such metals could be cold-worked in simple pottery kilns, and then cast into moulds, a process largely accepted as being present within ancient Egyptian times. However, the smelting of iron requires hot-working, and can only be melted in specially designed extremely heated furnaces. It is therefore not surprising that humans only mastered iron smelting after several millennia of the bronze age. However, there is a pair of relics, found within ancient Egypt, who’s sheer existence disprove the officially held, chronological account of when these hardened metals were developed. Or do they? … Within the ancient wrappings of the sarcophagus which contained pharaoh Tutankhamen, two daggers were discovered. Encased in gold sheaths, they were placed there more than 3000 years prior, for the king’s protection within the afterlife. One had an iron blade and the other with a blade made of hardened gold. Yet both are not made from regular metals, amazingly, these daggers are in fact, made from metals not native to Earth. It is officially accepted that it would have been quite difficult, nigh impossible, for ancient civilizations to have acquired iron in pure states, so most of the pure iron found in weaponry within this mysterious culture, are academically accepted as coming from quote, “meteoric sources.” This explanation, may be easier to digest for the majority of the population of earth, however, it is not only a flawed explanation, but illogical. If this ancient Egyptian civilization which possessed knowledge we are yet to re discover, did indeed extract these alien metals from meteorites, yet largely accepted to have not been able to cast such metals, then an obvious question arises, how did they cast the metal into daggers? The official explanation offered provides no answer, as is often the case with out of place artefacts. A more logical scenario, is that these daggers were in fact the remnants of a far older civilisation, a civilisation responsible for the construction of ancient Egypt, a group of people visited by, or indeed travelled too, people from another world entirely. Additionally, modern, advanced metallurgical analysis found that the iron dagger, is not a normal meteoritic iron, but a complex, intelligent, and very strong alloy, containing varying amounts of nickel, chromium, and cobalt. Furthermore, the nickel content is so high, nearly 25%, it makes this alloy totally different from those made by man. The Alchemy required to make such a non-rusting metal, was developed many centuries, of not millennia after king Tuts death. Just where did these daggers come from? How old could they actually be? Were they made as a gift by a race who visited earth? Apart from our postulations, it seems no one can produce a working theory.
Views: 953892 Mystery History
Mining in the USA:" United States: A Ten Talent Nation" (1922) American Motion Picture Corp.
 
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Good overview of mining and mineral resources in the US as of 1922, with many nice film clips and lots of statistics. http://en.wikipedia.org/wiki/Mining Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, or reef, which forms the mineralized package of economic interest to the miner. Ores recovered by mining include metals, coal and oil shale, gemstones, limestone, and dimension stone, rock salt and potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Mining of stone and metal has been done since pre-historic times. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation of the land after the mine is closed. The nature of mining processes creates a potential negative impact on the environment both during the mining operations and for years after the mine is closed. This impact has led to most of the world's nations adopting regulations to moderate the negative effects of mining operations. Safety has long been a concern as well, and modern practices have improved safety in mines significantly... Mining in the United States became prevalent in the 19th century, and the General Mining Act of 1872 was passed to encourage mining of federal lands. As with the California Gold Rush in the mid 19th century, mining for minerals and precious metals, along with ranching, was a driving factor in the Westward Expansion to the Pacific coast. With the exploration of the West, mining camps were established and "expressed a distinctive spirit, an enduring legacy to the new nation;" Gold Rushers would experience the same problems as the Land Rushers of the transient West that preceded them. Aided by railroads, many traveled West for work opportunities in mining. Western cities such as Denver and Sacramento originated as mining towns. As new areas were explored, it was usually the gold (placer and then load) and then silver that were taken first, with other metals often waiting for railroads or canals. Coarse gold dust and nuggets do not require smelting, is easy to identify and is easily transported. Modern period In the early 20th century, the gold and silver rush to the western United States also stimulated mining for base metals such as copper, lead, and iron as well as coal. Areas in modern Montana, Utah, Arizona, and later Alaska became predominate suppliers of copper to the world, which was increasingly demanding copper for electrical and households goods. Canada's mining industry grew more slowly than the United States due to limitations in transportation, capital, and U.S. competition; Ontario was the major producer of the early 20th century with nickel, copper, and gold. Meanwhile, Australia experienced the Australian gold rushes and by the 1850s was producing 40% of the world's gold, followed by the establishment of large mines such as the Mount Morgan Mine, which ran for nearly a hundred years, Broken Hill ore deposit (one of the largest zinc-lead ore deposits), and iron ore mines at Iron Knob. After declines in production, another boom in mining occurred in the 1960s and in the 21st century Australia remains a major world mineral producer. Into the 21st century, a globalized mining industry of large multinational corporations has arisen. Peak minerals and environmental impacts have also become a concern. Different elements, particularly rare earth minerals, have begun to increase in demand as a result of new technologies...
Views: 40 Old Movies Reborn
18 Most Rare & Expensive Gemstones
 
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From the most beautiful stones in the world to the most expensive rocks you’ve ever seen these gemstones are worth a shocking amount of money 8. Ruby Rubies come in vibrant shades of dark red, bright red, and purple-red. Like diamonds, they are found globally except for Antarctica. The most valuable of these gemstones come from Asia, and its main exporters are Sri Lanka, Thailand, and Myanmar. The "pigeon's blood" varieties that spot a pure red and violet gue are by far the most popular. A ruby can go for about $15,000 in the world market because of their limited numbers. 7. Rough Diamond The most desirable of all gemstones is a rough diamond, and it also happens to be amongst the most expensive. The wedding industry could be blamed for the enormous popularity of cut diamonds globally. Besides that, most women wouldn't mind adding a jewelry piece carrying diamonds to her collection. Presently, perfectly cut D color diamonds can fetch as much as $15,000 per carat. 6. Serendibite The extremely rare gemstone originally came from Sri Lanka in 1902. The inosilicate features a complex chemical formula and comprises of aluminum, magnesium, calcium, and boron. One of these gemstones recently came out of the Mogok mines in Myanmar. The serendibite goes for $18,000 per carat. 5. Jadeite The Jade's most beautiful and rarest stone just so happens to also be the most expensive. It has been mined in a variety of colors, but its rich-emerald color continues to be the most favored, and these jadeites originate from Myanmar. However, mauve, apple green, and lavender jadeites are also quite popular with buyers. The stone also forms an integral part of the Mesoamerican, Maori, and Chinese cultures where they are used to carve weapons, fashion jewelry, and also used for medicinal and religious purposes. Jadeites are currently priced at about $20,000 per carat. 4. Grandidierite The greenish-blue or yellow-blue mineral is quite rare and was first discovered in Sri Lanka. However, in the twentieth century, Alfred Grandidier, a French explorer, found a bulk of the minerals in Madagascar. Only about two dozen of the faceted grandidierite exist today. The stone borrowed its name from its founder. The unique gemstone goes for $30,000 per carat. 3. Red Diamond Considered the most expensive gem in the world, the red diamond would set you back US$1 million per carat. In the history of mankind, very only 30 samples of these gemstones have been found, and most weigh under 0.5 carats. Australia's Argyle diamond mine is the only place where these diamonds can be mined, and only a few stones are extracted from it each year. While most people might assume that the red color is an impurity, it comes from the deformation of the crystal lattice. The priciest and largest of these stones ever sold was the Moussaieff Red Diamond that went for $8 million in 2011. 2. Blue Diamond Colored diamonds tend to be amongst the most expensive gemstones in the world because of their rarity and spectacular brilliance. Colored diamonds occur in a spectrum of black, yellow, champagne, red, chocolate/brown, pink, green, and blue colors. The most popular are the Pink Star and Oppenheimer Blue. The Oppenheimer Blue diamond has a vivid blue hue and its the largest of such diamonds to go on auction selling for $57.5 million. That particular piece weighed 14.62 carats translating to $3.93 million per carat. The Pink Star recently broke the record selling for a whopping $71.2 million for a 59.6-carat piece. 1. US$3 Million Rare Black Opal Bobby, an Australian miner, found an opal back in 2002. After he fell on hard times, he sold his mining equipment and took home his last bucket of rocks. He began rubbing the grimy stones and discovered hints of gold and green. It took Bobby two years to whittle the encasing rock away from the gemstone hidden inside. What he ended up with was an extremely rare 306-carat black opal. You'd think that he would cash in on the precious stone, but instead, he kept it tucked safely underneath his mattress for another 12 years. It kind of reminds you of a certain character from The Lord Of The Rings, and Bobby himself said that he considered it one of God's greatest creations that he had to guard. He finally entrusted it to Katherine Jetter, an Australian jewelry designer who debuted it at a Wynn Hotel, Las Vegas Couture show for US$3 million. The black opals generally sell at $3,500 per carat. Thanks for watching coming up next Insane Military Tech and Machines That Actually Exist!
Views: 125330 Down The Rabbithole
Gold extraction with BORAX for small-scale miners - Rather Rich & Healthy than Poor & Poisoned
 
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Learn how to make more gold with borax instead of mercury. Description of a new environmentally beneign gold extraction method which will make use of mercury for gold extraction redundant. Further information about the Borax method: http://www.geus.dk/program-areas/common/int_borax_fact_sheet_07-dk.htm
Views: 6798 GEUSgeology
AES Advanced Gold Extraction
 
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Visit our Crowd Funding at https://www.indiegogo.com/projects/advanced-gold-extraction/x/7628308 and earn 4 times your contribution back in Gold.
Views: 10079 AES Goldmine
Gold Overview -- Gold Exploration & Mining (1/6)
 
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A company whose principal activities consist of exploration for mineral, oil or gas may not progress to the next stage of development or to a stage where it is able to generate revenue. Minerals companies are amongst the top stocks on SGX, with an annual turnover velocity of more than 280%, a rate which is many more than times that of the typical stock. Gold holds a special allure for investors as it is a precious metal and a store of value. This seminar will touch of the risks of exploration & development of gold mineral deposits, including the various broad categories of goal mineral deposits and methods for development and extraction. Join our speaker Mark Berry (geologist), as he covers an overview of geology, exploration, development and extraction of iron ore and nickel, with emphasis on the risks that investors need to know about.
Views: 1026 SGXChannel
WHATS INSIDE?     DISSOLVING ROCKS WITH TABLE VINEGAR
 
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What's inside these two rocks when etched? Looking for crystals by dissolving calcite in simple table vinegar for two weeks. I had to refresh the vinegar multiple times in this experiment.
Views: 447079 meMiner

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