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The Fire Assay of Fly Eyes
July 2002 by Dr. Ralph E. Pray
Colorado-Utah-Wyoming oil shale was first reliably discovered to contain gold and silver by the U.S. Bureau of Mines in the 1920s. Although most of this vast shale resource, up to 1,000 feet in thickness, contained nil or barely detectable values, many brown shale samples fire assayed here over the past thirty years have yielded up to 0.02 ounces per ton (opt) Au and 2.0 opt Ag.Hunting for Gold in the Quartzsite Area of Western Arizona
Winters are a great time to explore the hills in the area of the Middle Camp, Oro Fino and La Cholla placers on the southern flank of the Dome Rock Mountains.
Practical Advice for Milling Hard Rock Ores
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
Montana Candidate Sees Natural Resources as Path to Recovery
The key to returning Montana’s economy to its glory days is to remove the laws that prevent development of the state’s natural resources, says Thomas Keating, the only Republican who has declared himself a candidate for governor.
Silver Hill, North Carolina
To the writer's knowledge, this was the first discovery of silver and lead in North Carolina and perhaps one of the first official discoveries of silver east of the Mississippi River.
The Silver, Gold and Gemstones of Candelaria, Nevada
The Candelaria area is of interest to prospectors not just for silver, gold and other metals, but also for the beautiful gemstones found there.
Mining Stock Quotes and Mineral & Metal Prices
The Spanish Silver of Mowry
The Arizona mine and town that eventually became known as Mowry actually started with the discovery of a rich ledge of silver by either Spanish Jesuit priests or Spanish soldiers around 1736.
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