All Articles
Understanding and Evaluating Desert Mineralization for Nuggetshooters
July 2005 by Jim Straight
The primary source of many dryplacers is from the weathering of small to large hardrock sulphide ledges to yield free-gold, soluble salts and iron oxides. Placer gold, both large and small nuggets, can be found from the top inch down...
The Bawl Mill
• Not the best choice of words
• File not found...yet
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
U.S. Dept. of Interior Inspectors in Arizona
Glynn Burkhardt, president of the Arizona Small Mine Operators Association, has a small mine outside of Tucson, Arizona. He recently received a visit from U.S. Department of Interior...
Desert Bonanza
If you think all the vein gold near the surface has been dug up—think again! A weekend prospector recently came into the lab with a shoe-box full of samples that were from ten to fifty percent native crystalline gold on dirty white quartz.
GOP Chairmen Ask Gore to Recuse Himself From Roadless Plan
Vice President Al Gore should cease all participation in the Clinton administration's proposal to ban roads and other development in 43 million acres of roadless forests, two GOP committee chairmen say.
Placer Gemstones
Only the so-called “precious gems” will be considered in this article. They are diamond, ruby, sapphire, and emerald. A “gem” must be rare, hard, and durable, and possess a unique color or quality in order to be classified as a gem.
A Golden Summer
His take of gold was pretty close to what mine was—about a quarter of an ounce. We had just gleaned about half an ounce of gold in just twenty minutes.
Subscription Required:
The Bawl Mill
• Our Readers Say
• The Montana Tunnels Discovery
• Spreading the Fever
• Forest Service Final Rule—When is a Notice or Plan Required?
• Looking Back
• New Regulations for Major Precious Metal Dealers
• The Paradox Basin—Part I
• The Safety in Tax Deductions for Safety
• A Search for Tantalum
• Copper is King in Arizona
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
