Last Chance Mine, Yavapai Co., Arizona, USA
Ref.: U.S. Bureau of Land Management Mining District Sheet #273, SE½.
U.S. Bureau of Land Management plat 1397.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology file data.
MRDS database Dep. ID #10048247, MRDS ID M800360; and, Dep. ID #10283724, MAS ID #0040251266.
A former surface and underground Au-Ag-Cu mine. Produced 1937-1941.
Mineralization is a vein deposit with a tabular ore body. Ore control was faulting and shearing. Ore concentration was oxidation and enrichment at near surface. Alteration was minor.
Area structures include veins that trend NE and foliation in Proterozoic rocks that trends N20E.
| Gold|| Pyrite|
2 entries listed. 2 valid minerals.
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Locality Updated: Sanguinheiro Mine, Lorvão, Penacova, Coimbra District, PortugalFrom Rui Nunes, 30th Aug 2014 07:34:02