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Pyrolusite from
Case Group, Unorganized District, Custer Co., South Dakota, USA

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Case Group, Unorganized District, Custer Co., South Dakota, USA
Nearest other occurrences of Pyrolusite
2.2km (1.4 miles) C & N Group, Unorganized District, Custer Co., South Dakota, USA
4.1km (2.6 miles) Jack Pot Group, Unorganized District, Custer Co., South Dakota, USA
21.9km (13.6 miles) Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
25.1km (15.6 miles) Tin Mountain Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
47.5km (29.5 miles) Peerless Mine (Monitor; Monarch; Protector), Keystone, Keystone District, Pennington Co., South Dakota, USA
87.6km (54.4 miles) Hoffman Iron Deposit Mine, Lead District, Lawrence Co., South Dakota, USA
88.5km (55.0 miles) Wasp No. 2 Mine (Little Blue Mine), Yellow Creek area, Lawrence Co., South Dakota, USA
122.7km (76.3 miles) Unidentified Gold Occurrence (MRDS - 10080787), Bear Lodge District, Crook Co., Wyoming, USA
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