All Articles
Using Rock Formations to Your Advantage
June 2005 by Jim Straight
Over the past twenty or more years, the traditional “seat of the pants” science of using mineral identification tables as a means to identify common ore minerals, their associated rock-forming minerals and rocks, has slowly become a lost art.
Carrizozo Lava Older Than Once Thought
The Valley of Fires lava flow outside Carrizozo is older than previously thought. In geologic terms, the central New Mexico volcanic feature is still a youngster at 5,000 years old. But that's considerably older than the 1,000-year-old tag scientists once placed on it...
So Where's The Gold?
...we finally got back to this exploration effort. The old works there were up above the old camp, which was very significant in size.
PGMs in California
The occurrence of platinum-group metals (PGMs) is rather widespread in California in placer deposits, but they are not of commercial interest as things now stand.
Identifying the Noble Metals Simple Tests That Work
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...
Legislative and Regulatory Update
• Conformation for some
• Congress canceling regulations
Gold Placers in Italy
Gold is a fairly widespread mineral in the Italian Alps and in the Northern Apennines. It is found both in primary mineralization and in past and recent floods.
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The Bawl Mill
• Our Readers Say
• Pacific Legal Foundation Gets Significant Win
• States to Govern Own Roadless Areas
• Corralling Those Pesky Platinum Group Metals
• Turquoise Mining—Labor Intensive, But Worthwhile
• Goldville, Alabama
• Companies Scramble to Boost Copper Production
• Mining Sisters Make History
• Picks & Pans: The Perfect Paystreak
• Significant Oil and Gas on Alaska's Central North Slope
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
