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
Unkelstein, Unkelbach, Remagen, Ahrweiler, Rhineland-Palatinate, Germany


Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Unkelstein, Unkelbach, Remagen, Ahrweiler, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:665379
Long-form Identifier:1:3:665379:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
3.2km (2.0 miles) ⓘMarienberg Mine, Unkel, Unkel, Neuwied, Rhineland-Palatinate, Germany
3.5km (2.1 miles) ⓘVirneberg Mine, Rheinbreitbach, Unkel, Neuwied, Rhineland-Palatinate, Germany
6.0km (3.8 miles) ⓘErl, Kasbach-Ohlenberg, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
6.2km (3.9 miles) ⓘClemenslust Mine, Linz am Rhein, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
6.4km (4.0 miles) ⓘVenus Mine, Linz am Rhein, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
7.0km (4.4 miles) ⓘDrachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
8.9km (5.5 miles) ⓘQuegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
12.6km (7.8 miles) ⓘAnxbach Mine, Lorscheid, Sankt Katharinen, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
12.8km (8.0 miles) ⓘRabenlay (Rabenley), Oberkassel, Beuel, Bonn, Cologne, North Rhine-Westphalia, Germany
15.4km (9.6 miles) ⓘLeilenkopf, Brohl-Lützing, Bad Breisig, Ahrweiler, Rhineland-Palatinate, Germany
References
Nose K.W. (1790): Orographische Briefe über das Siebengebirge….., 2. Teil Westliche Rheinseite, Edelen von Cobres, Fankfurt
 
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