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
Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany


09541850017271980197958.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
09146890017271980293354.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
04206510017271980233343.jpg
Biotite, etc.

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
09541850017271980197958.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
04445650017374834717424.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
04206510017271980233343.jpg
Biotite, etc.

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
09541850017271980197958.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
09146890017271980293354.jpg
Biotite

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
04206510017271980233343.jpg
Biotite, etc.

Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
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
Associated Minerals Based on Photo Data:
Magnetite1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Tönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:85268
Long-form Identifier:1:3:85268:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.5km (1.0 miles) ⓘKorretsberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.2km (1.4 miles) ⓘPlaidter Hummerich, Plaidt, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.6km (1.6 miles) ⓘEiterköpfe quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.9km (1.8 miles) ⓘLangenberg quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.7km (2.3 miles) ⓘWannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.4km (2.8 miles) ⓘNickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.2km (3.2 miles) ⓘKarmelenberg quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.7km (3.5 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
6.1km (3.8 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
6.2km (3.8 miles) ⓘBasalt quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Hentschel, G. (1975) Die Mineralien der basaltischen Gesteine im Laacher Vulkangebiet. Der Aufschluss, 26 (2) 65-87
Blaß, G.; Kruijen, F. (2015) Die Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26 (5). 80-90
 
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