All Articles
Gemstones in Wyoming—Part I
December 2005 by W. Dan Hausel
Gemstones are timeless treasures of beauty. The extraordinary and satiated colors of many gemstones enhance their aesthetic beauty. Gems have been sought for personal adornment since the beginning of time and such minerals...
For a Few Specks of Gold
The gold at the Ruby Hill Mine is microscopic, specks of specks that amount to a few ounces in every 100 tons of rock. It is embedded hundreds of feet beneath the rocky floor of the high desert, tawny and stubbled with sagebrush, toothy ridges dusted with snow.
Prospecting My Way Across Australia Pt I
After contributing to the total, I am proud to claim my share of Ray’s patch. In total, we got almost an ounce of gold from the schist where it seems to have been formed.
Arizona Mines and Minerals Releases New Directory
The Directory of Active Mines in Arizona-1999, just released by the Arizona Department of Mines and Mineral Resources, reflects the strength and diversity of the Arizona mining industry.
From the Editor
You will find a few articles in this issue that you wouldn’t normally expect to see in the Journal. Don’t fret—we’re not changing our focus, but the time seemed right to address a few pressing topics.
The Boludo Placers, Sonora
The Boludo placers described here include gravels that have been listed under many different names, including Altar, Golden Triangle, Llanos del Oro, San Francisco, and Trincheras, among others. The placers are on desert flats at the northwest end of Sierra Santa Rosa, about 2,600 feet above sea level. It is in a region of northwest-trending mountain ranges separated by broad desert valleys.
Small-Scale Processing of Hard Rock Ores
Depending on the ore and if significant sulfides are present, a hard rock miner may be able to get away with simply using a flux to digest the other minerals that may be present.
Advancements in Non-Toxic Gold and Silver Leaching
The non-toxic thiosulfate is actually the medical antidote given to people for cyanide poisoning. By accomplishing both neutralization and metals recovery, this process creates an economic and environmentally attractive process.
Subscription Required:
The Bawl Mill
• Pombo Bill to Provide Some Relief for Miners
• Gateway Gold and Jerritt Canyon
• The Koyukuk-Nolan Goldfields
• Miners Come Out On Top in SREP v. USFS
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
• Looking Back
• Company Notes
• Adding Shine to Your Portfolio
• Picks & Pans: Nuggetshooting Around Cactus
• Tales of California Gold Discoveries 4th in a Series—Pay Attention When You Dig
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Legislative and Regulatory Update
• Understanding Sampling Techniques
