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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Anorthoclase from
Westerwald Volcanic Field, Westerwaldkreis, Rhineland-Palatinate, Germany


Locality type:Volcanic Field
Classification
Species:Albite var: Anorthoclase
Formula:(Na,K)AlSi3O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anorthoclase data
Locality Data:Click here to view Westerwald Volcanic Field, Westerwaldkreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:1382167
Long-form Identifier:1:3:1382167:0
GUID (UUID V4):0
Nearest other occurrences of Anorthoclase
48.4km (30.1 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
49.6km (30.8 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
50.3km (31.3 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
51.0km (31.7 miles) ⓘGleeser Felder, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
51.2km (31.8 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
52.4km (32.5 miles) ⓘHüttenberg sand pit, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
54.2km (33.7 miles) ⓘDrachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
94.6km (58.8 miles) ⓘAuf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
References
Lippolt, H.J. & Todt, W. 1978. Isotopic age eterminations on volcanic rocks from Westerwald, Germany, Neues Jahrbuch für Geologie und Paläntologie Monatshefte Stuttgart, 332-352.
Wedepohl, K. Hans, Gohn, Emil, Hartmann, Gerald (1994) Cenozoic alkali basaltic magmas of western Germany and their products of differentiation. Contributions to Mineralogy and Petrology, 115 (3) 253-278 doi:10.1007/bf00310766
Schreiber, U., Anders, D., & Koppen, J. (1999). Mixing and chemical interdiffusion of trachytic and latitic magma in a subvolcanic complex of the Tertiary Westerwald (Germany). Lithos, 46(4), 695-714.
Haase, K. M., Goldschmidt, B., & Garbe-Schönberg, C. D. (2004). Petrogenesis of Tertiary continental intra-plate lavas from the Westerwald region, Germany. Journal of petrology, 45(5), 883-905.
 
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