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 Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany


07646940017272310835183.jpg
Phlogopite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01482830017272033883257.jpg
Phlogopite, etc.

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01023310017272310554321.jpg
Biotite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
07553750017272033282990.jpg
Biotite, etc.

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
07646940017272310835183.jpg
Phlogopite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01482830017272033883257.jpg
Phlogopite, etc.

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01023310017272310554321.jpg
Biotite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
08206040017363798036815.jpg
Biotite, etc.

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
07646940017272310835183.jpg
Phlogopite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01482830017272033883257.jpg
Phlogopite, etc.

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
01023310017272310554321.jpg
Biotite

Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
00571580017272033313720.jpg
Biotite, etc.

Nickenicher Sattel, 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:
Phillipsite Subgroup4
Nepheline3
Amphibole Supergroup2
Sodalite2
Pyroxene Group2
Chabazite2
- var Phacolite1
Sanidine1
Aragonite1
Augite1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
Photo GalleryView Gallery (12 photos)
Data Identifiers
Mindat Occurrence Record ID:85045
Long-form Identifier:1:3:85045:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.2km (1.4 miles) ⓘNickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.2km (2.0 miles) ⓘLorenzfelsen, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.3km (2.0 miles) ⓘKrufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.3km (2.7 miles) ⓘKunkskopf quarry, Wassenach, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
4.6km (2.8 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.7km (2.9 miles) ⓘVeitskopf, Wassenach, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
5.1km (3.2 miles) ⓘKorretsberg, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.2km (3.2 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.2km (3.2 miles) ⓘPlaidter Hummerich, Plaidt, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.5km (3.4 miles) ⓘGleeser Felder, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
References
Brauns, Reinhard (1922) Die Mineralien der Niederrheinischen Vulkangebiete - Mit besonderer Berücksichtigung ihrer Bildung und Umbildung. E. Schweizerbart'sche Verlagsbuchhandlung.
 
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