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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Bytownite from
Firmeza District, Santiago de Cuba Province, Cuba


Locality type:District
Classification
Species:Anorthite var: Bytownite
Formula:(Ca,Na)[Al(Al,Si)Si2O8]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bytownite data
Locality Data:Click here to view Firmeza District, Santiago de Cuba Province, Cuba
Data Identifiers
Mindat Occurrence Record ID:863145
Long-form Identifier:1:3:863145:9
GUID (UUID V4):0
References
Roesler, Max (1917) Geology of the Iron-Ore Deposits of the Firmeza District, Oriente province, Cuba, AIME Transactions, p. 77-127.
 
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