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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Psilomelane from
Summit claim, Escabrosa Ridge, Bisbee, Cochise County, Arizona, USA


Locality type:Claim
Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Summit claim, Escabrosa Ridge, Bisbee, Cochise County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:256246
Long-form Identifier:1:3:256246:9
GUID (UUID V4):0
References
Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in AZ, AZ Bur. Mines Bull. 127: 43
 
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