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
Dungberg (Dungkopf), Unkelbach, Remagen, Ahrweiler, Rhineland-Palatinate, Germany


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 Dungberg (Dungkopf), Unkelbach, Remagen, Ahrweiler, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:665404
Long-form Identifier:1:3:665404:7
GUID (UUID V4):0
Nearest other occurrences of Gypsum
5.5km (3.4 miles) ⓘVirneberg Mine, Rheinbreitbach, Unkel, Neuwied, Rhineland-Palatinate, Germany
16.1km (10.0 miles) ⓘHannebacher Ley, Hannebach, Spessart, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
18.2km (11.3 miles) ⓘHüttenberg sand pit, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
19.3km (12.0 miles) ⓘHoffnung Mine (Spes Mine), Martinsknipp, Ahrbrück, Altenahr, Ahrweiler, Rhineland-Palatinate, Germany
21.3km (13.2 miles) ⓘNickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
22.7km (14.1 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
23.1km (14.4 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
23.1km (14.4 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
23.8km (14.8 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
26.2km (16.3 miles) ⓘBendisberg Mine, St Jost, Langenfeld, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Brauns, Reinhard (1922) Die Mineralien der Niederrheinischen Vulkangebiete - Mit besonderer Berücksichtigung ihrer Bildung und Umbildung. E. Schweizerbart'sche Verlagsbuchhandlung.
 
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