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
Hellefeld quarry, Hellefeld, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Quarry
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Hellefeld quarry, Hellefeld, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:104992
Long-form Identifier:1:3:104992:3
GUID (UUID V4):0
Nearest other occurrences of Siderite
2.1km (1.3 miles) ⓘWestenfeld quarry, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
8.2km (5.1 miles) ⓘA46 Highway bridge, Uentrop, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
10.2km (6.3 miles) ⓘCaspari Mine, Uentrop, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
12.9km (8.0 miles) ⓘHermann Mine, Hüttebrüchen, Allendorf, Sundern, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
21.0km (13.0 miles) ⓘDavid Mine (Christiansglück Mine), Warstein, Soest, Arnsberg, North Rhine-Westphalia, Germany
22.7km (14.1 miles) ⓘBastenberg Mine, Ramsbeck, Bestwig, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
25.4km (15.8 miles) ⓘAurora Mine, Ramsbeck, Bestwig, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
25.8km (16.0 miles) ⓘDörnberg Mine, Olsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
31.9km (19.8 miles) ⓘGenna zinc smelter slag locality, Helmke quarry nature reserve, Letmathe, Iserlohn, Märkischer Kreis, Arnsberg, North Rhine-Westphalia, Germany
32.6km (20.3 miles) ⓘGlanzenberg Mine, Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
References
Wittern, Artur (2001) Mineralfundorte und ihre Minerale in Deutschland (1st ed.) Schweizerbart, Stuttgart.
 
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