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
Mühlenbach Mine, Arenberg, Koblenz, Rhineland-Palatinate, 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 Mühlenbach Mine, Arenberg, Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:174641
Long-form Identifier:1:3:174641:9
GUID (UUID V4):0
Nearest other occurrences of Siegenite
40.5km (25.2 miles) ⓘPetersbach Mine, Eichelhardt, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
47.5km (29.5 miles) ⓘGrüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
48.3km (30.0 miles) ⓘPius Mine, Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
48.6km (30.2 miles) ⓘFüsseberg Mine, Biersdorf, Daaden, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
49.2km (30.5 miles) ⓘFriedrich Mine, Steckenstein, Mittelhof, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
49.2km (30.6 miles) ⓘEupel Mine (incl. Glücksstern Mine; Rasselskaute Mine), Niederhövels, Hövels, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
50.3km (31.3 miles) ⓘPeterszeche mine, Burbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
52.0km (32.3 miles) ⓘSchöne Aussicht Mine, Burbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
53.1km (33.0 miles) ⓘLohmann field, Große Burg Mine, Altenseelbach, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
55.3km (34.4 miles) ⓘNeue Eintracht Mine, Freusburg, Kirchen, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
References
Emser Hefte 1979(1), 31
 
and/or  
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