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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Siderotil from
Julia coal mine, Baukau, Herne, Arnsberg, North Rhine-Westphalia, Germany


Locality type:Colliery
Classification
Species:Siderotil
Formula:FeSO4 · 5H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderotil data
Locality Data:Click here to view Julia coal mine, Baukau, Herne, Arnsberg, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:47375
Long-form Identifier:1:3:47375:6
GUID (UUID V4):0
Nearest other occurrences of Siderotil
14.6km (9.1 miles) ⓘAuguste Victoria coal mine, Hüls, Marl, Recklinghausen, Münster, North Rhine-Westphalia, Germany
31.1km (19.3 miles) ⓘPrangenhaus quarry, Wülfrath, Mettmann, Düsseldorf, North Rhine-Westphalia, Germany
84.6km (52.6 miles) ⓘWildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
97.4km (60.5 miles) ⓘEisenzecher Zug mine, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
98.1km (61.0 miles) ⓘBrüderbund Mine, Kohlenbach Valley, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
References
 
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