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
Bendisberg Mine, St Jost, Langenfeld, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, 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 Bendisberg Mine, St Jost, Langenfeld, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:369155
Long-form Identifier:1:3:369155:7
GUID (UUID V4):0
Nearest other occurrences of Gypsum
9.3km (5.8 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
10.1km (6.3 miles) ⓘHannebacher Ley, Hannebach, Spessart, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
10.1km (6.3 miles) ⓘMayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
11.7km (7.3 miles) ⓘHüttenberg sand pit, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
11.7km (7.3 miles) ⓘRabenberg, Thür, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
11.9km (7.4 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
12.7km (7.9 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
13.4km (8.3 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
14.6km (9.1 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
17.0km (10.6 miles) ⓘHoffnung Mine (Spes Mine), Martinsknipp, Ahrbrück, Altenahr, Ahrweiler, Rhineland-Palatinate, Germany
References
Graf, Hans-Werner (1991) Die Grube Bendisberg, bei Virneburg, Eifel. Mineralien-Welt, 2 (5). 30-33
 
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