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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Marcasite from
Gründenwald, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany


Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Gründenwald, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
Data Identifiers
Mindat Occurrence Record ID:167992
Long-form Identifier:1:3:167992:2
GUID (UUID V4):0
Nearest other occurrences of Marcasite
1.6km (1.0 miles) ⓘGütle mill, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
2.4km (1.5 miles) ⓘGoldengründle, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
2.7km (1.7 miles) ⓘKäpeledobel, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
4.8km (3.0 miles) ⓘMünstergrund Mine, St Trudpert, Münstertal, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
6.0km (3.8 miles) ⓘTeufelsgrund Mine, Belchen, Münstertal, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
8.0km (5.0 miles) ⓘWildsbach Mine, Hof, Münstertal, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
8.8km (5.5 miles) ⓘTannenboden mine, Aitern, Lörrach, Freiburg Region, Baden-Württemberg, Germany
11.1km (6.9 miles) ⓘLisbühl, Todtnau, Lörrach, Freiburg Region, Baden-Württemberg, Germany
12.6km (7.8 miles) ⓘBernhard Mine, Geschwend, Todtnau, Lörrach, Freiburg Region, Baden-Württemberg, Germany
12.7km (7.9 miles) ⓘPfarrhöhle, Sulzburg, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
References
Walenta, Kurt (1992) Die Mineralien des Schwarzwaldes und ihre Fundstellen. Christian Weise Verlag. 336 pp.
 
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