Enrichment of Gold Veins
November 2000 by Edgar B. Heylmun, PhDMost of the world's great gold mines are in secondary (supergene) enrichments in veins and stockwork, brought about by physical and chemical processes.
• Canyon Resources Corp.
• X-Cal Resources
• Homestake Mining Company
• Pan American Silver Corp.
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?
There may be lots of smaller gold I cannot hear with a detector, but it looks just fine in my pan once it is out of the crevice.
What are they? They are too hard to be lead, and are not tarnished like silver should be.
Communist China Now Controls Supply of Rare Minerals
Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.
• On a personal note...
• The numbers don't lie...much
• The blame game
The Bawl Mill • Our Readers Say • The Assay of High Iron Gold Ores • The Patch • History of Mining—Bradshaw Mountains, AZ (Part I) • Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine • The Oretron • Silver Hill, North Carolina • Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites • Hardrock in Downieville • Looking Back • Company Notes • Gold in Northern Baja California • California State Gold Panning Championship Results • Melman on Gold & Silver • V.P. Contender Addresses Mining Show