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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Pyrolusite from
Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:85647
Long-form Identifier:1:3:85647:2
GUID (UUID V4):0
Localities for Pyrolusite in this Region
Henriette Shaft, Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
Nearest other occurrences of Pyrolusite
1.1km (0.7 miles) ⓘHenriette Shaft, Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
1.2km (0.7 miles) ⓘZufriedenheit Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
4.0km (2.5 miles) ⓘBreinigerberg Mine, Breinig, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
25.8km (16.1 miles) ⓘHerzogenhügel, Ternell, Eupen, Liège, Wallonia, Belgium
26.4km (16.4 miles) ⓘMembach mine, Baelen, Liège, Wallonia, Belgium
32.7km (20.3 miles) ⓘMechernicher Bleiberg, Mechernich, Euskirchen, Cologne, North Rhine-Westphalia, Germany
33.1km (20.6 miles) ⓘGemeentegrot quarry, Valkenburg aan de Geul, Limburg, Netherlands
33.4km (20.7 miles) ⓘSibbe quarry, Sibbe, Valkenburg aan de Geul, Limburg, Netherlands
33.4km (20.7 miles) ⓘTanzberg Mine, Kall, Euskirchen, Cologne, North Rhine-Westphalia, Germany
41.8km (26.0 miles) ⓘPietersberg, Maastricht, Limburg, Netherlands
References
Aufschluss 90(2), 111-130
 
and/or  
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