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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Corundum from
Basalt quarry, Hohenseelbachskopf, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Quarry
Classification
Species:Corundum
Formula:Al2O3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Corundum data
Locality Data:Click here to view Basalt quarry, Hohenseelbachskopf, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:1007252
Long-form Identifier:1:3:1007252:9
GUID (UUID V4):0
Nearest other occurrences of Corundum
45.6km (28.3 miles) ⓘEudenberg quarry, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
51.5km (32.0 miles) ⓘMinderberg quarry (Düstemich), Linz am Rhein, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
51.6km (32.1 miles) ⓘPerlenhardt, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
52.6km (32.7 miles) ⓘÖlberg (Oelberg), Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
54.2km (33.7 miles) ⓘStenzelberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
54.5km (33.8 miles) ⓘWeilberg (Großer Weilberg), Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
55.3km (34.4 miles) ⓘWolkenburg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
55.7km (34.6 miles) ⓘDrachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
55.8km (34.7 miles) ⓘJungfernberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
57.6km (35.8 miles) ⓘUnkelstein, Unkelbach, Remagen, Ahrweiler, Rhineland-Palatinate, Germany
References
Haege, T. (1887): Die Mineralien des Siegerlandes und der angrenzenden Gebiete. 50 pp.
 
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