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Columbite-Tantalite from
Etta Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA

Locality type:Mine
Classification
Species:'Columbite-Tantalite' (not an IMA approved species)
Comments:Occurs in a lithia pegmatite.
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Believed Valid
References
References:Rocks & Minerals: 57: 160; Rocks & Minerals: 60: 110 & 112.; USGS Bull 380D; 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.
Associated Minerals Based on Photo Data:
Muscovite6 photos of Columbite-Tantalite associated with Muscovite at this locality.
Albite4 photos of Columbite-Tantalite associated with Albite at this locality.
Beryl3 photos of Columbite-Tantalite associated with Beryl at this locality.
Data
Mineral Data:Click here to view Columbite-Tantalite data
Locality Data:Click here to view Etta Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
Nearest other occurrences of Columbite-Tantalite
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
1.2km (0.7 miles) Dan Patch West Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
2.7km (1.6 miles) Sitting Bull pegmatite, Keystone, 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
4.6km (2.9 miles) Wood Tin mine, Harney City, Pennington Co., South Dakota, USA
5.7km (3.5 miles) Star Lode (Star Lithia Mine), Keystone Mining District, Pennington Co., South Dakota, USA
6.3km (3.9 miles) Tiger mine, Hayward, Pennington Co., South Dakota, USA
15.1km (9.4 miles) First Find Claim, Hill City Mining District, Pennington Co., South Dakota, USA
 
Mineral and/or Locality  
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