All Articles
Platinum Group Metals
May 1999 by William M. Clem
Platinum is only one of a group of related metals that are referred to as platinum group metals (PGMs), because platinum in its native state usually contains all six metals of the group along with some iron.Melman on Gold & Silver
As the wags have been putting it recently, it looks like the United States is caught between “Iraq and a hard place.” Every day for the past month we have read headlines about the likelihood of immediate war, and, based on those headlines, gold, petroleum and the financial markets have gone off on their tangents.
Ask The Experts: How would you go about evaluating a silver deposit?
Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.
Mining Stock Quotes and Mineral & Metal Prices
The Basics of Small-Scale Heap Leaching with Cyanide
In last month’s article I talked a bit about opportunities for heap leaching small hardrock deposits. This month I’m going to talk about the basics of putting together a heap leach project, including building the pad and leaching the ore.
Legislative and Regulatory Update
• Clean Water Act rule change proposed
• DOJ files motion against Oregon miners
• Off-road access case to be reviewed by Supreme Court
• Resources Coalition hard at work
• Leavitt takes helm of EPA
The Bawl Mill
• So much for privacy in the great outdoors...
• It's smoky in the Smoky Mountains...
• A tale of two or three populations...
• That retirement nest egg may need to be grade A extra large...
Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals?
Q: Aside from the softness scratch test and other methods of identification, what feedback would you have on identifying gold in hard rock that may be mixed with other metals that affect its color?
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The Bawl Mill
• Mining Law—A Short History
• Industry Urges Restraint on Mining Reforms
• Environmentalists Back FS on Mining Withdrawl
• Our Readers Say
• Open Letter to the BLM
• Huge Nugget To Be Auctioned
• Company Notes
• Gold at Mercury Mines
• The Lovitt Mine
• Picks & Pans: "Eye-Balling" for Alaskan Gold
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
• Oil and Gas in Washington
• As Millennium Nears, Copper No Longer King in Arizona
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