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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Chalcocite from
Birkengang zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany


Locality type:Slag Locality
Classification
Species:Chalcocite
Formula:Cu2S
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Birkengang zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:119045
Long-form Identifier:1:3:119045:8
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
1.3km (0.8 miles) ⓘMünsterbusch zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
2.7km (1.7 miles) ⓘZufriedenheit Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
3.2km (2.0 miles) ⓘHenriette Shaft, Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
3.7km (2.3 miles) ⓘDiepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
27.0km (16.8 miles) ⓘHerzogenhügel, Ternell, Eupen, Liège, Wallonia, Belgium
34.4km (21.4 miles) ⓘCopper smelter slag locality, Kall, Euskirchen, Cologne, North Rhine-Westphalia, Germany
43.7km (27.1 miles) ⓘSilberberg Mine, Schmidtheim, Blankenheim, Euskirchen, Cologne, North Rhine-Westphalia, Germany
54.5km (33.9 miles) ⓘMoët-Fontaine, Rahier, Stoumont, Liège, Wallonia, Belgium
60.3km (37.5 miles) ⓘBertha shaft, Neue Hoffnung Mine, Bleialf, Prüm, Bitburg-Prüm, Rhineland-Palatinate, Germany
60.7km (37.7 miles) ⓘThier des Carrières, Cahay, Vielsalm, Luxembourg, Wallonia, Belgium
References
 
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