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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Natrolite from
Fraßgraben quarry (Gall quarry; Modre quarry), Fraßgraben, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria


Locality type:Quarry
Classification
Species:Natrolite
Formula:Na2Al2Si3O10 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Natrolite data
Locality Data:Click here to view Fraßgraben quarry (Gall quarry; Modre quarry), Fraßgraben, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
Data Identifiers
Mindat Occurrence Record ID:226504
Long-form Identifier:1:3:226504:9
GUID (UUID V4):0
References
Taucher, J. (1994). Diaspor im Granat vom Pusygraben bei Lölling, Kärnten. Carinthia II, 184./104., 244-245.
 
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