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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Biotite from
Saint-Nabor quarries, Saint-Nabor, Molsheim, Bas-Rhin, Grand Est, France


Locality type:Quarry
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Saint-Nabor quarries, Saint-Nabor, Molsheim, Bas-Rhin, Grand Est, France
Data Identifiers
Mindat Occurrence Record ID:78422
Long-form Identifier:1:3:78422:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
35.1km (21.8 miles) ⓘBluttenberg, Sainte-Marie-aux-Mines, Colmar-Ribeauvillé, Haut-Rhin, Grand Est, France
40.5km (25.2 miles) ⓘTrapp Quarries, Raon-l'Étape, Saint-Dié-des-Vosges, Vosges, Grand Est, France
43.3km (26.9 miles) ⓘHorberig, Oberbergen, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
48.6km (30.2 miles) ⓘCorcieux Quarry, Corcieux, Saint-Dié-des-Vosges, Vosges, Grand Est, France
53.1km (33.0 miles) ⓘWasserbourg quarry, Wasserbourg, Colmar-Ribeauvillé, Haut-Rhin, Grand Est, France
56.3km (35.0 miles) ⓘHechtsberg quarry, Hausach, Hausach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
59.3km (36.9 miles) ⓘFuchsköpfle quarry, Herdern, Freiburg im Breisgau, Freiburg Region, Baden-Württemberg, Germany
60.1km (37.3 miles) ⓘLes Bas Rupts, Gérardmer, Saint-Dié-des-Vosges, Vosges, Grand Est, France
60.5km (37.6 miles) ⓘClara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
62.2km (38.7 miles) ⓘLe Haut-Poirot, Gérardmer, Saint-Dié-des-Vosges, Vosges, Grand Est, France
References
Wittern, A.; Journée, J.R. (1997) Mineralien finden in den Vogesen. Verlag Sven von Loga. 160 pp.
 
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