Chromium-bearing Biotite
A variety of Biotite
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Formula:
K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
A Cr-bearing variety of biotite.
Unique Identifiers
Mindat ID:
9911 (as Chromium-bearing Biotite)
677 (as Biotite)
677 (as Biotite)
Long-form identifier:
mindat:1:1:9911:6 (as Chromium-bearing Biotite)
mindat:1:1:677:2 (as Biotite)
mindat:1:1:677:2 (as Biotite)
Chemistry of Chromium-bearing Biotite
Mindat Formula:
K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Element Weights:
Synonyms of Chromium-bearing Biotite
Chromium Mica (in part)
Radioactivity
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Chromium-bearing Biotite
mindat.org URL:
https://www.mindat.org/min-9911.html
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References for Chromium-bearing Biotite
Reference List:
Localities for Chromium-bearing Biotite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
China | |
| Jianhong Zhang et al. (1989) |
India | |
| S. Nag et al. (1999) |
Ireland | |
| Max et al. (1983) +1 other reference |
