Copper King mine, Copper Valley Mining District, Pershing County, Nevada, USAi

Regional Level Types
Copper King mine	Mine
Copper Valley Mining District	Mining District
Pershing County	County
Nevada	State
USA	Country

Sec 27, 28 T25N R29E
Alteration: Silicification

Deposit: The copper king claims were originally located for copper in 1906 & 1908. There is no record of any copper production during this period. In 1949 e.j. Bottomley acquired the property. In 1952 the property was optioned to the cordero mining corp. Which shipped 750 tons of tungsten ore recovering 614 tungsten ton units. After this several lessees worked the property on a small scale. Wallace & durbin shipped 193 tons of 0.22% wo3 in 1956, producing 1,216 lbs of tungsten. Property was idle 1956 to 1968 when the property was examined by nevada copper & tungsten, inc. Exploration studies have been done up to the present, but no mining activity. Property is developed by 3 shafts 50-250 ft. Deep, 2 pits 6-8 feet deep, 4 trenches 40-50 ft. Long, and 3 shallo W trenches. ; info.src : 1 pub lit; 2 unpub rept; 3 field observ shear zones, contact tactite zones. At sample site 2992, dump composed of massive garnet skarn, stained with chrysocolla, green cu oxides, some Mn oxide, clots of Fe ox and cu ox gossan (melaconite). Some altered aplitic intrusive on dump with limonite points. Cu ox and fe-mn ox coating large blocks, crystalline calcite, patches of aplite, marble, skarn exposed around shaft in wash and several shallow trenches. Garnet appears to be a pod-like body or lens- along irregular contact; area covered by thin pediment gravel-s- hard to see trends. Granodiorite to S and sw, limestone and- marble to N and nw. Copper king shaft (site 2993) is sunk on -garnet skarn where it is cut by n60e, 70 nw-dipping shear zone- about 4-5 ft wide, gossany with Fe ox and cu ox along it; gar-net zone extends about 100 ft to open pit to east (1985). . The uranium occurrence is located approximately 0.25 miles NE of the mine building and major workings of the cop-per king mine. There is anomalous scintillometer count but no visible uranium is present in lime garnet skarn in a small pit. The highest radiation is in a pod in coarse crystalline marble adjacent to the highest concentration of green garnet. Discovery year: 1906, 1908

Deposit type: W skarn

Development: Explored recently with no mining activity (1970's). Utah international was studying and drilling the property in 1979-1980 to determine orebody extent . US vanadium explored the property in 1944 but soon abandoned it

Geology: Mineralization in the area consists of scheelite and minor powellite in tactite areas near limestone granodiorite contacts, and copper in shear zones which appear to cut the tactites. Four tactite zones, of both contact and stratabound types, have been outlined at copper king. Scheelite in the various tactite zones is erratically distributed, generally As irregular lenses and pods. Anomalous amounts of iron (pyrite), copper (chalcopyrite, chalcocite, malachite) and molybdenum (molybdenite) are found within the granodiorite intrusive. It seems likely this disseminated iron-copper-molybdenum type mineralization is both genetically and spacially related to tactite development. There is a possibility for recovery of minor byproduct copper and molybdenum sulfides from tactite bodies mined for tungsten.

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Link to USGS MRDS:	10042447

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References