The Ball Mill
May 2003 by Staff• This wasn't the UN makeover we were expecting
• Do you have more money than you really need?
• British tabloids "French roast" Chirac
• Reporter comes out of the closet
Once you get down to the black sands or a few tablespoons of material, the technique changes dramatically.
Excerpts from CMJ published 50 years ago this month.
For centuries gold has been a symbol of wealth for both individuals and nations. Because of its chemical and physical resistance it has been widely sought after by early explorers whose only motive was to find new sources of gold.
Ultraviolet light is divided into three levels, labeled A, B and C depending on the wavelength, with C having the shortest wavelength and the most energy.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Since the cycle of water flow is dominated by excessive and sudden “gulley washers” after downpours typical of desert country, there is a tendency to spread gold values out in the alluvial fans and not have placer gold concentrations more typical of big river deposits.
Vertical aerial photographs, a form of remote sensing, are invaluable in the search for mineral deposits, and have been used for 60 years for that purpose.
Our Readers Say • WMD Raffle Raises Funds for Lawsuit • Gold in Alabama • From the Editor • Yukon Placer Miners Fighting Extreme Discharge Limits • Picks & Pans: Red Beryl Mining—Beaver County, Utah • The Investigation • A Gold Detector Sitting in a Closet Only Finds Dust—A Potpourri of Detector Tips • Central Coast Ranges • Poll: Montana in Favor of Repealing Anti-Mining Initiative • Platinum in Laccoliths • Mining Stock Quotes and Mineral & Metal Prices • Looking Back • Melman on Gold & Silver