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Why Did This Silver Mine Close? -Conclusion
January 2015 by Bill Rich
Strategic metals that are found mostly in lead-zinc-silver ores are antimony, arsenic, bismuth, gallium, germanium and tellurium.
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San Diego County Tourmaline
June 2001
San Diego County, California, has long been considered the finest source of pink tourmaline in the world. The Pala, Mesa Grande, Rincon, and Ramona districts in the northern portion of the county have produced tourmaline, kunzite, and other gems in great quantities, much of it jewelry and museum-quality specimens.
San Diego County, California, has long been considered the finest source of pink tourmaline in the world. The Pala, Mesa Grande, Rincon, and Ramona districts in the northern portion of the county have produced tourmaline, kunzite, and other gems in great quantities, much of it jewelry and museum-quality specimens.
Ask the Experts
June 2014
• Can you explain a jig, Ainlay bowl, hammer mill?
• Can you explain a jig, Ainlay bowl, hammer mill?
Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites
November 2000
Nearly everyone who has drywashed or metal detected for placer gold within hardrock gold-mining areas is aware of "residual placers" (a.k.a. seam diggin's)...
Nearly everyone who has drywashed or metal detected for placer gold within hardrock gold-mining areas is aware of "residual placers" (a.k.a. seam diggin's)...
Legislative and Regulatory Update
July 2011
• Battle continues in the "Golden State"
• California Water Board needs your comments
• Battle continues in the "Golden State"
• California Water Board needs your comments
AZ Miners and Minerals Department Threatened with Elimination
March 1999
Once again, the Arizona Department of Mines and Mineral Resources (ADMMR) is being threatened with elimination.
Once again, the Arizona Department of Mines and Mineral Resources (ADMMR) is being threatened with elimination.
Picks & Pans: Tips for Nuggestshooting—How to Increase Your Gold Finds (Part I)
April 2000
From a prospector's standpoint, the metal detector may be one of the most significant breakthroughs of the twentieth century. It is believed that the first metal detector was discovered accidentally in 1925 when a radio engineer...
From a prospector's standpoint, the metal detector may be one of the most significant breakthroughs of the twentieth century. It is believed that the first metal detector was discovered accidentally in 1925 when a radio engineer...
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