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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Minium from
Copper smelter slag locality, Kall, Euskirchen, Cologne, North Rhine-Westphalia, Germany


Locality type:Slag Locality
Classification
Species:Minium
Formula:Pb3O4
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Minium data
Locality Data:Click here to view Copper smelter slag locality, Kall, Euskirchen, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:783448
Long-form Identifier:1:3:783448:6
GUID (UUID V4):0
Nearest other occurrences of Minium
38.1km (23.7 miles) ⓘBertha shaft, Neue Hoffnung Mine, Bleialf, Prüm, Bitburg-Prüm, Rhineland-Palatinate, Germany
39.0km (24.2 miles) ⓘMinium occurrence, Neue Hoffnung Mine, Bleialf, Prüm, Bitburg-Prüm, Rhineland-Palatinate, Germany
40.0km (24.9 miles) ⓘNeue Hoffnung Mine, Bleialf, Prüm, Bitburg-Prüm, Rhineland-Palatinate, Germany
43.7km (27.2 miles) ⓘErlenbach mine, Lontzen, Liège, Wallonia, Belgium
44.4km (27.6 miles) ⓘBendisberg Mine, St Jost, Langenfeld, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
49.2km (30.6 miles) ⓘSilbersand Mine, Sankt Johann, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
73.6km (45.7 miles) ⓘCastor Mine, Loope, Engelskirchen, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
84.5km (52.5 miles) ⓘFriedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
84.5km (52.5 miles) ⓘGrünbleiberg Mine, Niedergelpe, Gummersbach, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
91.8km (57.0 miles) ⓘRohdenhaus Quarry (incl. Krieger Quarry), Rohdenhaus, Wülfrath, Mettmann, Düsseldorf, North Rhine-Westphalia, Germany
References
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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