Orbicular biotite granite
A rock subtype
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Unique Identifiers
Mindat ID:
50501
Long-form identifier:
mindat:1:1:50501:5
GUID
(UUID V4):
(UUID V4):
9a0ef368-b2e2-4fc3-bebc-8c59f1f31ca4
Classification of Orbicular biotite granite
- Rock
- Igneous rock
- Normal crystalline igneous rock
- Coarse-grained ("plutonic") crystalline igneous rock
- Orbiculite
- Orbicular biotite granite
- Granitoid
- Granite
- Biotite granite
- Orbicular biotite granite
- Biotite granite
- Granite
- Orbiculite
- Coarse-grained ("plutonic") crystalline igneous rock
- Normal crystalline igneous rock
- Igneous rock
Granite is in section 3 of the QAPF diagram.
Mineralogy of Orbicular 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 |
Internet Links for Orbicular biotite granite
mindat.org URL:
https://www.mindat.org/min-50501.html
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