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From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo

Palmarejo Silver & Gold Corp., based in Longueuil, Quebec, is a gold-silver exploration company reexploring a former Spanish silver district in far southwestern Chihuahua.

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San Francisco Mint and US Gold Reserves


In 1717, Sir Isaac Newton, Master of the British Mint, established a fixed price for gold that was equivalent to around US$20.00 per ounce. This price was for bullion gold, refined to a purity of twenty-two karats (.917 fine).

Attention to Detail - Part II


Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.

Ask The Experts - Does silicone rubber make a good sluice mat?


Critical Minerals: Tungsten


Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.

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If it's gold, how should I clean it?

Stimulus Package Provides Potential Tax Savings For Miners


The American Recovery and Reinvestment Act of 2009, a nearly $800 billion stimulus package, includes nearly $300 billion in potential tax savings. Every prospector, miner and mining operator can share in over $75 billion in tax benefits for 2009 and 2010.

Mining Camp Adventures—The Collinsville-Twin Creek Goldfields


Collinsville had been the scene of several small gold stampedes. The golden paystreaks had paid well here at times, with two main creeks producing most of the gold, including a 19 ounce nugget found on nearby Mills Creek, which flowed 100 yards away from the main camp.

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The Bawl Mill   • Ask the Experts   • The Basics of Small-Scale Heap Leaching with Cyanide   • Will California Dredging Survive?   • Prospecting For Gold—The Osborne/Herman Hardrock Mine   • Journeys in the Kingman Quadrangle   • Spanish Police Seize Ship in Treasure Fight   • Looking Back   • Gold Mine Proposed in Jefferson County   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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