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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Montmorillonite from
Häuselberg, Leoben, Leoben District, Styria, Austria


Locality type:Quarry
Classification
Species:Montmorillonite
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Häuselberg, Leoben, Leoben District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:790657
Long-form Identifier:1:3:790657:2
GUID (UUID V4):0
Nearest other occurrences of Montmorillonite
1.5km (1.0 miles) ⓘRailway tunnel, Galgenberg, Leoben, Leoben District, Styria, Austria
28.5km (17.7 miles) ⓘLambachgraben quarry ("Harterbachgraben" quarry), Hadersdorf, Kindberg, Bruck-Mürzzuschlag District, Styria, Austria
40.4km (25.1 miles) ⓘPlatte, Mariatrost, Graz, Styria, Austria
45.9km (28.5 miles) ⓘA2 Highway cut, Packsattel, Preitenegg, Wolfsberg District, Carinthia, Austria
50.8km (31.6 miles) ⓘHematite Mine, Waldenstein, Wolfsberg, Wolfsberg District, Carinthia, Austria
58.8km (36.5 miles) ⓘSpodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
74.6km (46.3 miles) ⓘBasalt quarry, Kollnitz, Sankt Paul im Lavanttal, Wolfsberg District, Carinthia, Austria
80.7km (50.1 miles) ⓘAldrian quarry (Hofstatt quarry), Lieschengraben, Oberhaag, Leibnitz District, Styria, Austria
80.8km (50.2 miles) ⓘSchlarbaum quarry, Klausen, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
82.8km (51.5 miles) ⓘBorehole St W2, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
References
Freyn (1902), Redlich (1908)
 
and/or  
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