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
Warndt Mine, Karlsbrunn, Völklingen, Saarbrücken, Saarland, Germany


06210680017514409233519.jpg
Marcasite

Warndt Mine, Karlsbrunn, Völklingen, Saarbrücken, Saarland, Germany
06210680017514409233519.jpg
Marcasite

Warndt Mine, Karlsbrunn, Völklingen, Saarbrücken, Saarland, Germany
08441160017514409252512.jpg
Marcasite

Warndt Mine, Karlsbrunn, Völklingen, Saarbrücken, Saarland, Germany
Locality type:Colliery
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Warndt Mine, Karlsbrunn, Völklingen, Saarbrücken, Saarland, Germany
Data Identifiers
Mindat Occurrence Record ID:100767
Long-form Identifier:1:3:100767:1
GUID (UUID V4):0
Nearest other occurrences of Marcasite
10.3km (6.4 miles) ⓘLuisenthal Mine, Luisenthal, Saarbrücken, Saarland, Germany
12.8km (7.9 miles) ⓘGertraud sand pit, Altforweiler, Saarlouis, Saarland, Germany
15.7km (9.8 miles) ⓘEnsdorf (Duhamel) Mine, Ensdorf, Saarlouis, Saarland, Germany
18.7km (11.6 miles) ⓘNiedersalbach mine, Heusweiler, Saarbrücken, Saarland, Germany
24.3km (15.1 miles) ⓘMaybach Mine, Maybach, Friedrichsthal, Saarbrücken, Saarland, Germany
25.8km (16.0 miles) ⓘCopper mine, Düppenweiler, Beckingen, Merzig-Wadern, Saarland, Germany
28.6km (17.8 miles) ⓘArweiler Quarry, Reimsbach, Beckingen, Merzig-Wadern, Saarland, Germany
28.9km (18.0 miles) ⓘReden Mine, Landsweiler-Reden, Neunkirchen, Saarland, Germany
31.7km (19.7 miles) ⓘSetz quarry, Steinbach, Lebach, Saarlouis, Saarland, Germany
45.5km (28.3 miles) ⓘKloppberg Quarry, Kastel, Nonnweiler, Sankt Wendel, Saarland, Germany
References
Haas, Peter (n.d.) Personal communication.
 
and/or  
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