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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Copiapite from
Olympiada, Kassandra mining district, Aristotelis, Chalkidiki, Central Macedonia, Greece


Locality type:Mine
Classification
Species:Copiapite
Formula:Fe2+Fe43+(SO4)6(OH)2 · 20H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Copiapite data
Locality Data:Click here to view Olympiada, Kassandra mining district, Aristotelis, Chalkidiki, Central Macedonia, Greece
Data Identifiers
Mindat Occurrence Record ID:196113
Long-form Identifier:1:3:196113:3
GUID (UUID V4):0
References
www.brgm.fr (2003) http://www.brgm.fr/mineo/SiteReport/European_ores_geologF.pdf
 
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