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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Calcite from
Nikolai adit, Hora Svaté Kateřiny, Most District, Ústí nad Labem Region, Czech Republic


Locality type:Adit
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Nikolai adit, Hora Svaté Kateřiny, Most District, Ústí nad Labem Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:968490
Long-form Identifier:1:3:968490:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
9.1km (5.6 miles) ⓘAltväter samt Eschig Mine, Sayda, Mittelsachsen, Saxony, Germany
18.0km (11.2 miles) ⓘWolfsgrund, Dorfchemnitz, Mittelsachsen, Saxony, Germany
19.6km (12.2 miles) ⓘSaidenbach reservoir, Forchheim, Pockau-Lengefeld, Erzgebirgskreis, Saxony, Germany
19.7km (12.3 miles) ⓘMoldava deposit, Moldava, Teplice District, Ústí nad Labem Region, Czech Republic
20.3km (12.6 miles) ⓘBentonite deposit Braňany II - Černý vrch, Braňany, Most District, Ústí nad Labem Region, Czech Republic
20.6km (12.8 miles) ⓘBílina coal mine, Bílina, Teplice District, Ústí nad Labem Region, Czech Republic
20.9km (13.0 miles) ⓘAhníkov pyroxenite outcrop, Ahníkov, Málkov, Chomutov District, Ústí nad Labem Region, Czech Republic
20.9km (13.0 miles) ⓘVater Abraham Mine, Lauta, Marienberg, Erzgebirgskreis, Saxony, Germany
21.2km (13.1 miles) ⓘLibous quarry, Březno, Chomutov District, Ústí nad Labem Region, Czech Republic
21.3km (13.3 miles) ⓘLime works, Lengefeld, Pockau-Lengefeld, Erzgebirgskreis, Saxony, Germany
References
Gramblička, Roman (n.d.) Personal communication.
 
and/or  
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