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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Thomsonite-Ca from
Banská Štiavnica District, Banská Bystrica Region, Slovakia


Locality type:District
Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Banská Štiavnica District, Banská Bystrica Region, Slovakia
Data Identifiers
Mindat Occurrence Record ID:396274
Long-form Identifier:1:3:396274:9
GUID (UUID V4):0
References
Ďuďa R.,Kotuľak P., Káňa R. (1993): Bergbau und Mineralien von Banská Štiavnica (Schemnitz), Slowakei. Emser Hefte, 14 (3), 1-70 (in German).
 
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