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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Gypsum from
Dreislar Mine, Dreislar, Medebach, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Dreislar Mine, Dreislar, Medebach, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:75681
Long-form Identifier:1:3:75681:7
GUID (UUID V4):0
Nearest other occurrences of Gypsum
15.2km (9.4 miles) ⓘEisenberg, Goldhausen, Korbach, Waldeck-Frankenberg, Kassel Region, Hesse, Germany
16.1km (10.0 miles) ⓘCopper mine, Thalitter, Vöhl, Waldeck-Frankenberg, Kassel Region, Hesse, Germany
27.5km (17.1 miles) ⓘAlexander Mine, Meschede, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
32.0km (19.9 miles) ⓘFöckinghausen quarry, Bestwig, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
35.4km (22.0 miles) ⓘBleiwäsche quarry, Bleiwäsche, Bad Wünnenberg, Paderborn, Detmold, North Rhine-Westphalia, Germany
36.9km (22.9 miles) ⓘBlome quarry, Marsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
42.0km (26.1 miles) ⓘZimmersrode quarry, Zimmersrode, Neuental, Schwalm-Eder, Kassel Region, Hesse, Germany
43.1km (26.8 miles) ⓘMeggen Mine, Lennestadt, Olpe, Arnsberg, North Rhine-Westphalia, Germany
44.1km (27.4 miles) ⓘLignite mine, Neuenhain, Neuental, Schwalm-Eder, Kassel Region, Hesse, Germany
45.0km (28.0 miles) ⓘUnnamed quarry, Belecke, Warstein, Soest, Arnsberg, North Rhine-Westphalia, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
Unland, Georg (2004) Baryte und Strontianite vom Feinsten: Die Schwerspatlagerstätte Dreislar im Sauerland und ihre Mineralien [Barytes and strontianites at their finest: The Dreislar baryte deposit in the Sauerland and its minerals]. Mineralien Welt, 15 (3). 12-51
 
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