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
Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany


00199900017272042491928.jpg
Phlogopite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01802420017272440279258.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01781910017271999444185.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
06756380017271999457260.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
00505190017371853824293.jpg
Phlogopite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01454590017367313152429.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
04326040017367313154808.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
06936930017367313154272.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
00199900017272042491928.jpg
Phlogopite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01802420017272440279258.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01781910017271999444185.jpg
Biotite

Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
06756380017271999457260.jpg
Biotite

Nickenicher Weinberg, Nickenich, 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:
Cordierite2
Sanidine2
Hematite2
Pseudobrookite1
Calcite1
Mullite1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Nickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
Photo GalleryView Gallery (13 photos)
Data Identifiers
Mindat Occurrence Record ID:85015
Long-form Identifier:1:3:85015:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.2km (1.4 miles) ⓘNickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.9km (1.8 miles) ⓘKorretsberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.1km (1.9 miles) ⓘPlaidter Hummerich, Plaidt, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.1km (1.9 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.0km (2.5 miles) ⓘLorenzfelsen, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.3km (2.7 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.4km (2.8 miles) ⓘTönchesberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.0km (3.1 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.4km (3.4 miles) ⓘBasalt quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.5km (3.4 miles) ⓘEiterköpfe quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Hentschel, G. (1975) Die Mineralien der basaltischen Gesteine im Laacher Vulkangebiet. Der Aufschluss, 26 (2) 65-87
 
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