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
Glanzenberg Mine, Silberg, Kirchhundem, Olpe, 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 Glanzenberg Mine, Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:100618
Long-form Identifier:1:3:100618:6
GUID (UUID V4):0
Nearest other occurrences of Siderite
0.9km (0.6 miles) ⓘMercur Mine (Merkur Mine), Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
4.7km (2.9 miles) ⓘVictoria Mine, Littfeld, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
4.9km (3.0 miles) ⓘStahlberg Mine (Schwabengrube), Müsen, Hilchenbach, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
5.9km (3.7 miles) ⓘWildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
6.1km (3.8 miles) ⓘBrüche Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
14.4km (8.9 miles) ⓘNeue Haardt Mine (Neue Hardt Mine), Weidenau, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
17.4km (10.8 miles) ⓘFriedericke mine, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
21.0km (13.1 miles) ⓘSilberkuhle Mine, Tillkausen, Eckenhagen, Reichshof, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
22.1km (13.7 miles) ⓘFürst Moritz Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
22.6km (14.1 miles) ⓘPrinz Friedrich mine, Obersdorf, Wilnsdorf, 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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