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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Posnjakite from
Katharina I Mine, Imsbach, Winnweiler, Donnersbergkreis, Rhineland-Palatinate, Germany


Locality type:Mine
Classification
Species:Posnjakite
Formula:Cu4(SO4)(OH)6 · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Posnjakite data
Locality Data:Click here to view Katharina I Mine, Imsbach, Winnweiler, Donnersbergkreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:103175
Long-form Identifier:1:3:103175:1
GUID (UUID V4):0
Nearest other occurrences of Posnjakite
0.6km (0.4 miles) ⓘGrüner Löwe Mine, Imsbach, Winnweiler, Donnersbergkreis, Rhineland-Palatinate, Germany
58.7km (36.5 miles) ⓘKolbenberg iron mines, Nothweiler, Dahner Felsenland, Südwestpfalz, Rhineland-Palatinate, Germany
64.0km (39.8 miles) ⓘWerlau, Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany
66.2km (41.1 miles) ⓘÄquivalenz adit, Wellmich, Sankt Goarshausen, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
77.2km (48.0 miles) ⓘLead and silver smelter slag locality, Braubach, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
80.1km (49.8 miles) ⓘFriedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
81.0km (50.3 miles) ⓘArweiler Quarry, Reimsbach, Beckingen, Merzig-Wadern, Saarland, Germany
94.6km (58.8 miles) ⓘBangertsheck Mine, Weinbach, Limburg-Weilburg, Giessen Region, Hesse, Germany
References
Wittern, Artur (2001) Mineralfundorte und ihre Minerale in Deutschland (1st ed.) Schweizerbart, Stuttgart.
 
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