Quartz-feldspar-biotite porphyry
A rock subtype
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Quartz-feldspar-biotite-phyric porphyry
Unique Identifiers
Mindat ID:
48440
Long-form identifier:
mindat:1:1:48440:2
GUID
(UUID V4):
(UUID V4):
ad40ff88-ecfb-4b0f-8a9b-5bf5f3a9ce0c
Classification of Quartz-feldspar-biotite porphyry
- Rock
- Igneous rock
- Normal crystalline igneous rock
- Fine-grained ("volcanic") normal crystalline igneous rock
- Porphyry
- Quartz-feldspar-biotite porphyry
- Porphyry
- Porphyry
- Quartz-feldspar-biotite porphyry
- Fine-grained ("volcanic") normal crystalline igneous rock
- Normal crystalline igneous rock
- Igneous rock
Mineralogy of Quartz-feldspar-biotite porphyry
Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar | A petrological term for Feldspar Group. |
Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Silica > Quartz | SiO2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > Hornblende | An informal name for dark green to black amphiboles, mostly ferro-hornblende or ... |
Internet Links for Quartz-feldspar-biotite porphyry
mindat.org URL:
https://www.mindat.org/min-48440.html
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References for Quartz-feldspar-biotite porphyry
Reference List: