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


Locality type:Mine
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Wildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:90657
Long-form Identifier:1:3:90657:3
GUID (UUID V4):0
Nearest other occurrences of Siderite
0.5km (0.3 miles) ⓘBrüche Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
1.3km (0.8 miles) ⓘStahlberg Mine (Schwabengrube), Müsen, Hilchenbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.1km (3.2 miles) ⓘMercur Mine (Merkur Mine), Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
5.2km (3.2 miles) ⓘVictoria Mine, Littfeld, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.9km (3.7 miles) ⓘGlanzenberg Mine, Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
8.5km (5.3 miles) ⓘNeue Haardt Mine (Neue Hardt Mine), Weidenau, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
11.4km (7.1 miles) ⓘFriedericke mine, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
16.4km (10.2 miles) ⓘFürst Moritz Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
16.9km (10.5 miles) ⓘPrinz Friedrich mine, Obersdorf, Wilnsdorf, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
17.4km (10.8 miles) ⓘConcordia Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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