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
Gustav Mine (incl. Boxberger Hof), Werlau, Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, 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 Gustav Mine (incl. Boxberger Hof), Werlau, Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:177992
Long-form Identifier:1:3:177992:9
GUID (UUID V4):0
Nearest other occurrences of Gypsum
3.5km (2.2 miles) ⓘÄquivalenz adit, Wellmich, Sankt Goarshausen, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
13.0km (8.1 miles) ⓘLead and silver smelter slag locality, Braubach, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
16.3km (10.1 miles) ⓘFriedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
25.6km (15.9 miles) ⓘDr. Geier mine (Amalienhöhe mine; Elisenhöhe mine), Waldalgesheim, Rhein-Nahe, Mainz-Bingen, Rhineland-Palatinate, Germany
29.0km (18.0 miles) ⓘWannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
31.4km (19.5 miles) ⓘTönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
35.3km (21.9 miles) ⓘRabenberg, Thür, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
35.5km (22.1 miles) ⓘMayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
37.0km (23.0 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
37.0km (23.0 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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