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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Quartz from
Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany


Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:84885
Long-form Identifier:1:3:84885:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
2.4km (1.5 miles) ⓘGleeser Felder, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
2.8km (1.7 miles) ⓘHüttenberg sand pit, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
3.4km (2.1 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.4km (2.1 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.9km (2.4 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.1km (2.5 miles) ⓘBasalt quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.8km (3.0 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.5km (3.4 miles) ⓘWinfeld, Kottenheim, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.8km (3.6 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.9km (3.7 miles) ⓘBarthold (Berthold) Mine, Kell, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Hentschel, Gerhard (1983) Die Mineralien der Eifelvulkane (1st ed.). Christian Weise Verlag. 152 pp.
 
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