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Placer Platinum
June 2004 by Edgar B. Heylmun, PhD
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.Exchange Moves to Protect Investors from Mining Scams
Two years after the Bre-X gold mine scandal, the Toronto Stock Exchange proposed dozens of measures February 2 to protect investors from future mining-industry scams.
Finding Gold with a VLF Detector—Part III
The higher the sensitivity setting, the louder and sharper the signal from a gold nugget or other metal target.
Recent Prospecting in Plumas County
Plumas has been historically rich in gold because of its favorable geology. The Melones Fault trends north-south through the county and many rich gold-bearing districts lie along its course.
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The Assay of High Iron Gold Ores
By employing this technique, one can use a larger sample size without having to resort to large crucibles and massive amounts of flux.
The Bawl Mill
• Helium, going up, up and away...
• By the numbers...
• Unsustainable regulations...
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The Bawl Mill
• Higher Copper Price Brings Hope, Jobs
• Zeballos Gold Camp, British Columbia
• Agreement Allows Pogo Mine to Resume Construction
• Treasure Hawk Mine Back in Action
• Oregon Dredgers Receive Threats From Environmentalists
• Understanding Hard Rock Mining: Terms and Methods—Part I
• Mood at Calgary Conference is Subdued, But Optomistic
• Reinventing the Wheel—The Infinity-Jet
• Company Notes
• Endangered Species Act is a Mess
• Here Come the MineBots
• Agency Gives Initial Backing to Kensington Mine
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
• Melman on Gold & Silver
• Brits Thwart Robbery of Gold and Cash
