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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Acanthite from
Münsterbusch zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany


Locality type:Slag Locality
Classification
Species:Acanthite
Formula:Ag2S
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Silver2
Data
Mineral Data:Click here to view Acanthite data
Locality Data:Click here to view Münsterbusch zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:77414
Long-form Identifier:1:3:77414:1
GUID (UUID V4):0
Nearest other occurrences of Acanthite
1.3km (0.8 miles) ⓘBirkengang zinc smelter slag locality, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany
59.6km (37.0 miles) ⓘBertha shaft, Neue Hoffnung Mine, Bleialf, Prüm, Bitburg-Prüm, Rhineland-Palatinate, Germany
72.6km (45.1 miles) ⓘLüderich Mine, Altenbrück, Steinenbrück, Overath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany
74.9km (46.6 miles) ⓘVirneberg Mine, Rheinbreitbach, Unkel, Neuwied, Rhineland-Palatinate, Germany
87.9km (54.6 miles) ⓘSclaigneaux slag locality, Seilles, Andenne, Namur, Wallonia, Belgium
92.2km (57.3 miles) ⓘSur les Roches quarry, Bastogne, Luxembourg, Wallonia, Belgium
95.0km (59.0 miles) ⓘGeorg Mine, Willroth, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
References
International Association of Collectors of Slag Minerals, 9 (3), 3-6
Blaß, Günter; Graf, Hans-Werner (1995) Neufunde von Schlackenhalden in der nördlichen Eifel (II) [New discoveries of slag heaps in the northern Eifel (II)]. Mineralien-Welt, 6 (3). 28-31
 
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