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Ask The Experts - This low-grade ore is not worth processing

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Can the public take minerals from a mining claim?

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Q: Graphite spray to prevent sticking when using cast iron molds

Which Specific Gravity Test Works Best?


Have you ever wondered how accurate specific gravity tests are in determining the amount of gold in a specimen?

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Ore processing in California?

Ask The Experts - Were there insufficient values to continue mining at this site?


Were there insufficient values to continue mining at this site?

Ask The Experts: How would you go about evaluating a silver deposit?


Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.

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• When geologists and old-timers have conflicting views.

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The Bawl Mill   • Ask The Experts - Do I need something other than a fire assay for PGMs?   • Placer Gold Deposits of New Mexico   • The Hunch   • Resurrecting An Old Hard Rock Mine—A Series of Small Victories   • The Basics of Exploration Leases and Contracts—Part I   • Gold Prospecting for Better or Worse: A Long Hike   • Mutiny on The Mason   • Who Jumped Whose Claim First?   • The Value of Evidence   • Over The Divide: Charles "Chuck" Cushman   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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