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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Plagioclase from
Komu pegmatites, Atisbo, Oyo, Nigeria


Locality type:Pegmatite Field
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Komu pegmatites, Atisbo, Oyo, Nigeria
Data Identifiers
Mindat Occurrence Record ID:718261
Long-form Identifier:1:3:718261:7
GUID (UUID V4):0
References
Int J Econ & Environ Geology Vol 1(1) pp 21-26
 
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