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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Braunite from
Defiance Mine, Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USA


Locality type:Mine
Classification
Species:Braunite
Formula:Mn2+Mn63+(SiO4)O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Braunite data
Locality Data:Click here to view Defiance Mine, Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:668368
Long-form Identifier:1:3:668368:9
GUID (UUID V4):0
References
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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