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Pyrolusite from
Red Rock Island deposit, Richmond, Contra Costa County, California, USA


Locality type:Deposit
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Psilomelane
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Red Rock Island deposit, Richmond, Contra Costa County, California, USA
Data Identifiers
Mindat Occurrence Record ID:646713
Long-form Identifier:1:3:646713:5
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
10.9km (6.7 miles) ⓘMarin County No. 25 Mine (Marin County No. 25), Fort Baker, Marin County, California, USA
69.6km (43.2 miles) ⓘDyer prospect, Altamont, Alameda County, California, USA
75.2km (46.8 miles) ⓘKelly Mine, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
77.6km (48.2 miles) ⓘCamp 9 deposit (Camp 9 Merchant; Cummings), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
78.4km (48.7 miles) ⓘNelson Bailey Mine (Nelson lease; Bailey Mine; Newhall Mine), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
78.6km (48.8 miles) ⓘAlameda Company No. 39 prospect (Alameda County #39), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
80.3km (49.9 miles) ⓘNewman Estacia property, Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
80.7km (50.2 miles) ⓘCorral Hollow Manganese deposits, Corral Hollow, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
81.1km (50.4 miles) ⓘBlack Jack Mine, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
81.3km (50.5 miles) ⓘTaylor and Pitcher Mine, Tesla, Livermore Mining District (Tesla District), Alameda County, California, USA
References
Whitney, J.D. (1863), First annual report of the State Geologist for 1862: App. Jour. Senate and Assembly, 14th. Session: 79
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 303.
 
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