Prospecting With Color
December 2000 by Edgar B. Heylmun, PhDPerhaps no one factor has caused more confusion in the search for ore than the attempt to use color as a guide to prospecting. Yet, there is a reason for every color seen in rocks, so it deserves to be noted.
The extraordinary rebound in gold prices is claiming some unlikely victims—a few of the gold mining companies themselves.
Why, if America’s economic performance is advancing steadily…are two especially sensitive and widely-used commodities performing so poorly?
• Oregon's attack on suction gold dredging
• New DOI Director nominated
• More Forest Service restrictions in the works
• California suction gold dredging
• Election fallout
• Bad news in Bolivia
• Insert your own title...
• A good travel agent is hard to find...
• What’s a “surplus?”
In the silver belt of the Sierra Madre, the Lluvia de Oro was a discovery of gold, found not by the Spaniards of yore, but from an observant Indian a little over a century ago.
In order to search for placer diamonds, the prospector needs to first become familiar with the commodity that he/she is looking for. Diamonds are extraordinary minerals with extreme hardness that have inherited beauty sought for personal adornment and...
The Bawl Mill • Letter to the Editor • Potaro District, Guyana • World Gold Council Launches $3 Million Ad Campaign • 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