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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Siegenite from
Mercur Mine (Merkur Mine), Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Siegenite
Formula:CoNi2S4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siegenite data
Locality Data:Click here to view Mercur Mine (Merkur Mine), Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:100606
Long-form Identifier:1:3:100606:3
GUID (UUID V4):0
Nearest other occurrences of Siegenite
3.9km (2.4 miles) ⓘVictoria Mine, Littfeld, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
4.1km (2.6 miles) ⓘStahlberg Mine (Schwabengrube), Müsen, Hilchenbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.1km (3.2 miles) ⓘWildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.3km (3.3 miles) ⓘBrüche Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
13.6km (8.4 miles) ⓘNeue Haardt Mine (Neue Hardt Mine), Weidenau, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
23.3km (14.5 miles) ⓘLehnscheid, Wilnsdorf, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
23.3km (14.5 miles) ⓘEisenzecher Zug mine, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
24.0km (14.9 miles) ⓘNeue Eintracht Mine, Freusburg, Kirchen, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
26.0km (16.2 miles) ⓘLudwigseck Mine, Salchendorf, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
27.7km (17.2 miles) ⓘLohmann field, Große Burg Mine, Altenseelbach, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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