Samuel Franklin Hunt Nevada’s “Rio Tinto”
February 2006 by Jim StraightAt the well-known Rio Tinto copper district, Huelva, in southwestern Spain, large quantities of copper were found beneath a gossan of hematite at an average depth of 100 feet. The deposits were first mined during Roman times.
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Some of the advantages of dry washing operations are low overhead costs (inexpensive methods and equipment), and the fact that many mining operations can be conducted by one or two individuals.
…there is an easy way to create a reasonably accurate map without any fancy instruments.
The same questions you ask yourself about gold trapping features in the present stream can be applied to the benches above the stream. Just imagine the stream at a much earlier time, before it cut its way down to the present level…
Almost 200 miles northwest of Las Vegas, Nevada, Gold Point was developed initially as a gold mining community in 1868. Like most mining camps, it experienced a typical boom-to-bust cycle, and by 1882, Gold Point was clearly on its way to becoming just another abandoned ghost town.
PolyMet contends the project will actually reduce mercury and sulfate discharges into the St. Louis River watershed because it will clean up an old iron mining waste pond at the processing plant site.
Bismuth oxide for assaying?
The Bawl Mill • January Issues Delayed For Weeks As USPS Searches Their Facility • The Rocks That Burn: Is Oil Shale the Answer?—Part I • Feds Move Oil Shale to Front Burner • Basic Geology for the Independent Miner—Part II Recognizing and Understanding Rock Formations (Petrology) • The Circle Goldfields • New Montana Board Moves to Halt Mining • Newmont Looks to Ghana • PLP President Intervenes on Behalf of Dredgers • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices