Sulfides, Selenides and Tellurides
June 2007 by Chris RalphThe early day miners feared it, and it happened a lot more often than they would have liked: the easily worked rich surface ores they discovered gave way as they mined downward to a vein full of sulfides, base metals and other nasty, rebellious and...
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
Recovering gold from pyrite ore
Gold left in Rye Patch by the time I retire?
On January 11, 2002, at 7:00 am, a passerby found what he thought was a dead body by the Pro-Mack South Quartzsite store in front of the gate to the storage lockers next door. The police arrived to find Don Thornton, the Pro-Mack South Quartzsite store manager, unconscious, black and blue...
• USPS reverts to ponies?
• Crime and (no) punishment
We chose this particular area because an old channel had run here at one point and had been heavily worked on top of a mountain hilltop. Erosion patterns cut deeply on each side, leaving the channel exposed. The erosion cut sharply, dropping into ravines far below.
The Bawl Mill • Ask the Experts—What is barite used for? • Ask the Experts—Are you able to advise me on the status of HR3824? • Our Readers Say • Silver’s Shine is Back • Rahall Looks to Rewrite 1872 Mining Law • San Francisco Mint and US Gold Reserves • Forest Service Attempts to Close Public Access • Revisiting Commerce Resources—A Tantalum and Niobium Mining Project • The Seventymile and American Creek Goldfields • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver