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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Thénardite from
Lüderich Mine, Altenbrück, Steinenbrück, Overath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Thénardite
Formula:Na2SO4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thénardite data
Locality Data:Click here to view Lüderich Mine, Altenbrück, Steinenbrück, Overath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:104331
Long-form Identifier:1:3:104331:0
GUID (UUID V4):0
Nearest other occurrences of Thénardite
56.4km (35.1 miles) ⓘSchellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
61.2km (38.1 miles) ⓘScoria quarry, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
65.2km (40.5 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
81.3km (50.5 miles) ⓘAuguste Victoria coal mine, Hüls, Marl, Recklinghausen, Münster, North Rhine-Westphalia, Germany
85.3km (53.0 miles) ⓘEmma-Hendrik coal dump, Brunssum, Limburg, Netherlands
92.4km (57.4 miles) ⓘHasenberg quarry, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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