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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Gersdorffite from
Wildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Gersdorffite
Formula:NiAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gersdorffite data
Locality Data:Click here to view Wildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:90632
Long-form Identifier:1:3:90632:4
GUID (UUID V4):0
Nearest other occurrences of Gersdorffite
1.3km (0.8 miles) ⓘStahlberg Mine (Schwabengrube), Müsen, Hilchenbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.2km (3.2 miles) ⓘVictoria Mine, Littfeld, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
16.4km (10.2 miles) ⓘObersdorf, Wilnsdorf, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
17.7km (11.0 miles) ⓘBrüderbund Mine, Kohlenbach Valley, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
17.8km (11.1 miles) ⓘFischbacher Werk Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
18.2km (11.3 miles) ⓘEisenzecher Zug mine, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
20.7km (12.8 miles) ⓘStahlseifen Mine, Salchendorf, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
25.6km (15.9 miles) ⓘWingertshardt Mine, Voßwinkel, Hövels, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
26.4km (16.4 miles) ⓘFriedrich Mine, Steckenstein, Mittelhof, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
26.8km (16.6 miles) ⓘGrüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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