Biotite granite
A rock subtype
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About Biotite granite
Unique Identifiers
Mindat ID:
50499
Long-form identifier:
mindat:1:1:50499:1
Classification of Biotite granite

Granite is in section 3 of the QAPF diagram.
Sub-divisions of Biotite granite
- Biotite granite
Mineralogy of Biotite granite
Essential minerals - these are minerals that are required within the classification of this rock:
| Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
| Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Silica > Quartz | SiO2 |
Synonyms of Biotite granite
Other Language Names for Biotite granite
German:Biotitgranit
Common Associates
Associations Based on Photo Data:
Internet Links for Biotite granite
mindat.org URL:
https://www.mindat.org/min-50499.html
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References for Biotite granite
Reference List:





Palafrugell, Girona, Catalonia, Spain