All Articles
How PGMs Affect Assay Beads
September 2001 by Charles L. Butler
Most fire assayers are trained to observe the cupelled beads very carefully, noting any discoloring or surface roughness that might indicate that one or more of the platinum group metals (PGMs) are present. The “clues and tests” I have included in this article stem from several sources, including my 35 years of experience performing torch assays...Gold Pours Again at Jerritt Mine
Yukon-Nevada received permission last month from the Nevada Division of Environmental Protection to restart the mill, after the agency determined the company met environmental standards.
Ask The Experts
• Determining the amount of gold in a specimen
Building A Mine—Dust Devil Sunstones
Establishing a gemstone mine, like any other mining operation, is a difficult proposition. This is especially true if you are starting out from scratch without loads of money to get the business going.
Legislative and Regulatory Update
• Forest chief asks Norton to end Oregon mining moratorium
• DOI orders review of "science" used in Klamath Basin decisions
• BLM Launches EIS for Conservation and Restoration of BLM Public Lands in Western U.S.
• Fish & Wildlife service approach to critical habitat ruled unlawful in Arizona case
Legislative and Regulatory Update
- EPA ends "sue and settle"
- Sage grouse mineral withdrawal cancelled
How to Evaluate Mineral Claims—What to Know Before You Buy
Even though they have put down thousands of dollars, the buyers often stop paying on their claims part way through the process after they realize they’ve been duped, but the company just sells it again to another buyer.
The Summer of ‘81
When it was all setup and running, you had everything coming off the dredge riffles into the boil box. At the hole section, some of the water got sucked down and pulled a lot of black sand and over heavies…
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The Bawl Mill
• A True Endangered Species
• Guest Editorial—Vertical Disintegration
• USGS Reports Increase of Imported Minerals
• The San Juan Mountains, Colorado
• A Silver Opportunity
• Gold in Virginia
• Picks & Pans: DEF Prospectors Rally Was a Huge Success
• News From GATA
• Our Nugget Shooting Adventure
• Fly Fishing the Mine Tailings/Headwaters of the Clark Fork, Montana
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
