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Identifying the Noble Metals Simple Tests That Work
May 2006 by Charles L. Butler
Using a porcelain evaporating dish, place concentrates or head ore, equal to a tablespoon, in 60cc of aqua regia. Boil almost to dry, then add 10cc HCl (hydrochloric or muratic acid) and heat for a few minutes, and then add 30cc of water and bring to boil. Let cool while the solids are being allowed to settle. Using a pipette...Additional articles that might interest you...
Exploration Drilling
June 1999
Selected excerpt from USDA Forest Service Technical Report:
Anatomy of a Mine from Prospect to Production
Selected excerpt from USDA Forest Service Technical Report:
Anatomy of a Mine from Prospect to Production
The Golden Highway—Placer County
November 2004
Leaving El Dorado County and crossing the middle fork of the American River, the next county along Highway 49, the “Golden Highway,” is Placer County. The county also owes its name to the mining heritage of the gold rush.
Leaving El Dorado County and crossing the middle fork of the American River, the next county along Highway 49, the “Golden Highway,” is Placer County. The county also owes its name to the mining heritage of the gold rush.
Ask The Experts—What's the cheapest way to mine quartz for gold?
August 2011
Q: I have a gold mine in Colorado. There was an assay done which stated [there is] a lot of quartz within the mine. What is the cheapest way to mine it for gold? I don’t have the money for mills, etc. Can I do it by hand (during summer holidays), and how would I get started?
Q: I have a gold mine in Colorado. There was an assay done which stated [there is] a lot of quartz within the mine. What is the cheapest way to mine it for gold? I don’t have the money for mills, etc. Can I do it by hand (during summer holidays), and how would I get started?
Investors Take a Shine to Platinum, Palladium
May 2010
Move over gold and make way for platinum and palladium. Investors are taking a shine to these lesser-known precious metals as their prices rise.
Move over gold and make way for platinum and palladium. Investors are taking a shine to these lesser-known precious metals as their prices rise.
Copper Mine Opening in Utah
April 2006
A second copper mine is opening in Utah with prices for the metal at their highest in a decade.
A second copper mine is opening in Utah with prices for the metal at their highest in a decade.
Legislative and Regulatory Update
May 2005
• NEPA improvements coming?
• Speaking of the Forest Service...
• Murkowski proposes tax increase on miners
• Kensington impact statement affirmed
• Rock Creek on hold, for now
• ESA reform update
• Desert Mineral Mining; one down, two to go for permits
• Montana smells a RAT
• NEPA improvements coming?
• Speaking of the Forest Service...
• Murkowski proposes tax increase on miners
• Kensington impact statement affirmed
• Rock Creek on hold, for now
• ESA reform update
• Desert Mineral Mining; one down, two to go for permits
• Montana smells a RAT
Our 29-Troy-Ounce Golden Blessing
December 2013
I picked up a noticeably heavy, fist-sized chunk of what I thought was a heavy piece of iron. After wiping some of the dirt and clay off, I still didn't know what on earth this object was.
I picked up a noticeably heavy, fist-sized chunk of what I thought was a heavy piece of iron. After wiping some of the dirt and clay off, I still didn't know what on earth this object was.
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The Bawl Mill
• Basic Geology for the Independent Miner—Part V Geology of Hardrock Gold Deposits
• Orko Silver Corp.
• Miners Win Again in SREP vs. USFS
• The Willow Creek-Hatcher Pass Alaskan Goldfields
• Metal Detecting for Gold Within Andesite and Basaltic Volcanic Mining Districts
• How to Prospect for Silver Field Tests You Can Use to Detect the Hidden Metal
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
