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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Cubanite from
Isua Greenstone Belt (Isua Supercrustal Belt), Nuuk, Sermersooq, Greenland


Locality type:Belt
Classification
Species:Cubanite
Formula:CuFe2S3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cubanite data
Locality Data:Click here to view Isua Greenstone Belt (Isua Supercrustal Belt), Nuuk, Sermersooq, Greenland
Data Identifiers
Mindat Occurrence Record ID:950560
Long-form Identifier:1:3:950560:5
GUID (UUID V4):0
References
Richards, J. R., & Appel, P. W. U. (1987). Age of the “least radiogenic” galenas at Isua, West Greenland. Chemical Geology: Isotope Geoscience section, 66(3), 181-191.
 
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