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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Cupropearceite from
Pošepny vein, Alexander Mine, Vrančice, Příbram District, Central Bohemian Region, Czech Republic


Locality type:Vein
Classification
Species:Cupropearceite
Formula:[Cu6As2S7][Ag9CuS4]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cupropearceite data
Locality Data:Click here to view Pošepny vein, Alexander Mine, Vrančice, Příbram District, Central Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:767969
Long-form Identifier:1:3:767969:8
GUID (UUID V4):0
References
Sejkora, J., Pauliš, P., Litochleb, J., Novák, F. (2010): Příspěvek k chemickému složení minerálů skupiny pearceit-polybazit z Vrančic u Příbrami (Česká republika) [Contribution to chemical composition of the minerals of pearceite-polybasite group from Vrančice near Příbram (Czech Republic). Bulletin mineralogicko-petrologického oddělení 18 (2), 23-31. [containing minor Cl]
 
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