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
Effenberg quarry, Herdringen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Effenberg quarry, Herdringen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:105199
Long-form Identifier:1:3:105199:5
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.3km (1.4 miles) ⓘNeveling Quarry (Herdringen Quarry), Herdringen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
2.3km (1.4 miles) ⓘEbel quarry, Herdringen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
4.1km (2.5 miles) ⓘLanwehr quarry, Müschede, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
4.3km (2.7 miles) ⓘCalcite quarry, Holzen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
6.0km (3.7 miles) ⓘ"An der Seilbahn" slag locality, Hüsten, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
7.0km (4.3 miles) ⓘAsbeck quarry (Hönne valley quarry), Eisborn, Balve, Märkischer Kreis, Arnsberg, North Rhine-Westphalia, Germany
9.7km (6.0 miles) ⓘA46 Highway bridge, Uentrop, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
10.4km (6.5 miles) ⓘWestenfeld quarry, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
10.5km (6.5 miles) ⓘCaspari Mine, Uentrop, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
12.1km (7.5 miles) ⓘChurfürst Ernst Mine, Bönkhausen, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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