All Articles
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...
Ask the Experts
April 2012
Q: Graphite spray to prevent sticking when using cast iron molds
Q: Graphite spray to prevent sticking when using cast iron molds
Group Sues Feds Over New Nat'l Monuments
March 2000
Several Arizona lawmakers and Utah ranchers filed suit against the federal government over the creation of a national monument in northern Arizona.
Several Arizona lawmakers and Utah ranchers filed suit against the federal government over the creation of a national monument in northern Arizona.
Legislative and Regulatory Update
October 2006
• Make your votes count
• Court tells Forest Service many access fees are illegal
• Kensington update
• Make your votes count
• Court tells Forest Service many access fees are illegal
• Kensington update
The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector
June 2012
I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.
I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.
Mineralized Faults and Contacts in the Search for Gold
January 2016
Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.
Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.Prospecting Underground: Use Caution
April 2011
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.
The Bawl Mill
April 2017
• Protesters trash the place
• IRS can't keep a secret
• Make way for minimum wage
• Protesters trash the place
• IRS can't keep a secret
• Make way for minimum wage
Subscription Required:
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
