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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Arsensulfurite from
Solfatara di Pozzuoli, Pozzuoli, Metropolitan City of Naples, Campania, Italy


Classification
Species:Sulfurite var: Arsensulfurite
Formula:(S,As)8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsensulfurite data
Locality Data:Click here to view Solfatara di Pozzuoli, Pozzuoli, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:429523
Long-form Identifier:1:3:429523:5
GUID (UUID V4):0
References
Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.
 
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