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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Bolivarite from
Agbaja Iron Deposit, Lokoja, Kogi, Nigeria


Locality type:Deposit
Classification
Species:Bolivarite
Formula:Al2(PO4)(OH)3 · 4-5H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bolivarite data
Locality Data:Click here to view Agbaja Iron Deposit, Lokoja, Kogi, Nigeria
Data Identifiers
Mindat Occurrence Record ID:609277
Long-form Identifier:1:3:609277:1
GUID (UUID V4):0
References
Mücke, A., Badejoko, T.A., and Akande, S.O. (1999) Petrographic-microchemical studies and origin of the Agbaja Phanerozoic Ironstone Formation, Nupe Basin, Nigeria: a product of a ferruginized ooidal kaolin precursor not identical to the Minette-type. Mineralium Deposita: 34: 284-296.
 
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