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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Specularite from
Unspecified Fe occurrence [1], San Bernardino County, California, USA


Locality type:Occurrence
Classification
Species:Hematite var: Specularite
Formula:Fe2O3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Specularite data
Locality Data:Click here to view Unspecified Fe occurrence [1], San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:676997
Long-form Identifier:1:3:676997:0
GUID (UUID V4):0
References
Kunz, George Frederick (1901), Precious stones: Mineral Resources U.S., 1900: 763
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 315
 
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