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Cassiterite from
Etta Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA

Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Comments:Occurs in a lithia pegmatite.
Confirmation
Validity:Believed Valid
References
References:Rocks & Minerals: 57: 160; Rocks & Minerals: 60: 110, 112.; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Norton, James J. (1964) Pegmatites and other Precambrian Rocks in the Southern Black Hills; Geology and mineral deposits of some pegmatites in the southern Black Hills, South Dakota. USGS Professional Paper 297E.
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Etta Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
Nearest other occurrences of Cassiterite
0.6km (0.4 miles) Nickel Plate Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
1.1km (0.7 miles) White Cap Mine (King Mica Mine; Primer lode), Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
1.1km (0.7 miles) Peerless Mine (Monitor; Monarch; Protector), Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
1.2km (0.7 miles) Hugo Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
1.7km (1.0 miles) Henry Tin Occurrence, Keystone Mining District, Pennington Co., South Dakota, USA
3.2km (2.0 miles) Phillip and Phyllis Lodes (Watson Feldspar Mine), Keystone Mining District, Pennington Co., South Dakota, USA
3.2km (2.0 miles) King Lithia Mine (King Fraction; King Lode; Equality), Greyhound Gulch, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
3.4km (2.1 miles) Cuyahoga Mine, Unorganized mining district [1], Custer Co., South Dakota, USA
3.6km (2.2 miles) Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
3.7km (2.3 miles) Glendale Mine, Glendale, Keystone Mining District, Pennington Co., South Dakota, USA
 
Mineral and/or Locality  
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