All Articles
Letter to the Editor
December 2000 by Scott Harn
Follow the chain of letters between everyday prospectors Robert and Lesa Barton of Oregon and Deputy Regional Forester Linda Goodman.Our Readers Say
• "Thank you..."
• "...dredges under 8" need not be regulated"
Understanding Sampling Techniques
There are a lot of differences between the operations of successful mining companies and ones that become financial failures, but one of the consistent key differences between them is their sampling programs.
Mining Stock Quotes and Mineral and Metal Prices
Placer Platinum
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.
Altar District's Golden Lure
The Altar District of Sonora, Mexico, stretches nearly 300 miles along the American border and approximately 200 miles along the Gulf coast. This particular district was noted for its rich placer deposits and gold ledges before the Spaniards ever settled the region. Several antiguas (Spanish mines) were later developed by the Europeans and were again being operated by the Americans as early as 1904.
All About Native Silver
Some of the wire forms are strange and fantastic, with wires sticking out in twisted, seemingly random directions. Others have deformed crystals and all of them have significant value to collectors.
Drive Under Way to Restore the Rights of Suction Dredgers
California Governor Schwarzenegger signed SB 670 on August 6, 2009, which temporarily halts suction dredging in California until a new Environmental Impact Report (EIR) is completed. This was despite a request from...
Subscription Required:
The Bawl Mill
• Potaro District, Guyana
• World Gold Council Launches $3 Million Ad Campaign
• Prospecting With Color
• Prospecting for Platinum in Wyoming
• Picks & Pans: More Big River Dredging in Northern California
• Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
• A Changing Diamond Industry Looks to Canada for Growth
• History of Mining—Bradshaw Mountains, AZ—Part II
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
