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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Cryolite from
Krupka, Teplice District, Ústí nad Labem Region, Czech Republic


Locality type:Municipality
Classification
Species:Cryolite
Formula:Na2NaAlF6
Comments:Horní Krupka.
Microinclusions in quartz, fluorite and cassiterite.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cryolite data
Locality Data:Click here to view Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:312191
Long-form Identifier:1:3:312191:7
GUID (UUID V4):0
References
Ďurišová, Jana (1988) Diversity of fluids in the formation of ore assemblages in the Bohemian Massif (Czechoslovakia). Bulletin de Minéralogie, 111 (5). 477-492 doi:10.3406/bulmi.1988.8095
 
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