Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chalcocite from
California State Gem Mine, Santa Rita Peak, San Benito County, California, USA


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Comments:Occurs as small crystals scattered throughout natrolite in the vein.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Anatase
Benitoite
Joaquinite-(Ce)
Jonesite
Natrolite
Associated Minerals Based on Photo Data:
Benitoite2
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
Data Identifiers
Mindat Occurrence Record ID:60313
Long-form Identifier:1:3:60313:5
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
54.4km (33.8 miles) ⓘNative Copper prospect, Parkfield, Monterey County, California, USA
References
Louderback, George Davis & Walter C. Blasdale (1909), Benitoite, its mineralogy, paragenesis and mode of occurrence: University of California, Department of Geological Sciences Bulletin: 5: 359
Murdoch, Joseph; Webb, Robert Wallace (1966) Minerals of California, Centennial Volume (1866-1966) - California Division of Mines and Geology, Bulletin 189. California Division of Mines and Geology. 559 pp.
 
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