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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Cryptomelane from
Gottesehre Mine, Urberg, Dachsberg, Waldshut, Freiburg Region, Baden-Württemberg, Germany


Locality type:Mine
Classification
Species:Cryptomelane
Formula:K(Mn74+Mn3+)O16
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cryptomelane data
Locality Data:Click here to view Gottesehre Mine, Urberg, Dachsberg, Waldshut, Freiburg Region, Baden-Württemberg, Germany
Data Identifiers
Mindat Occurrence Record ID:86755
Long-form Identifier:1:3:86755:7
GUID (UUID V4):0
Nearest other occurrences of Cryptomelane
28.0km (17.4 miles) ⓘRappenloch Mine, Eisenbach, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
29.9km (18.6 miles) ⓘKapf, Eisenbach, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
73.2km (45.5 miles) ⓘClara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
79.2km (49.2 miles) ⓘSilberbrünnle Mine, Gengenbach, Gengenbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
80.5km (50.0 miles) ⓘAllenbourn (Allenburn), Bitschwiller-lès-Thann, Thann-Guebwiller, Haut-Rhin, Grand Est, France
97.2km (60.4 miles) ⓘLe Repas deposit, Gemaingoutte, Saint-Dié-des-Vosges, Vosges, Grand Est, France
References
Walenta, Kurt (1992) Die Mineralien des Schwarzwaldes und ihre Fundstellen. Christian Weise Verlag. 336 pp.
 
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