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

Locality type:Mine
Classification
Species:Graphite
Formula:C
Confirmation
Validity:Believed Valid
References
References:Rocks & Minerals: 67(6): 380-388.; USGS Bull 380D
Data
Mineral Data:Click here to view Graphite data
Locality Data:Click here to view Etta Mine, Keystone, Keystone Mining District, Pennington Co., South Dakota, USA
Nearest other occurrences of Graphite
2.0km (1.2 miles) Columbia Mine (Maiden Mine), Keystone, Keystone Gold Mining District, Pennington Co., South Dakota, USA
9.3km (5.8 miles) Good Luck; Success; Cleveland Claims (American Tungsten Mining Company), Hill City Mining District, Pennington Co., South Dakota, USA
9.4km (5.9 miles) Vida May Occurrence (Pettit and Nash), Hill City Mining District, Pennington Co., South Dakota, USA
12.2km (7.6 miles) Dyke claim (Dike lode), Hill City Mining District, Pennington Co., South Dakota, USA
13.4km (8.3 miles) Black Metal Group, Hill City Mining District, Pennington Co., South Dakota, USA
13.7km (8.5 miles) U.S. highways 16/385 & State route 87 intersection area, Oreville Mining District, Pennington Co., South Dakota, USA
13.8km (8.6 miles) Eureka Lode Prospect (Hultz), Custer Co., South Dakota, USA
13.8km (8.6 miles) Hill City Mining District, Pennington Co., South Dakota, USA
14.5km (9.0 miles) Annie No. 1 Lode (Tin Spike), Hill City Mining District, Pennington Co., South Dakota, USA
15.2km (9.5 miles) Coats Mine (Coats Dike Mine; Cowboy Group), Hill City Mining District, Pennington Co., South Dakota, USA
 
Mineral and/or Locality  
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