Quartz-alkali-feldspar-trachyte
A rock classification type
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Trachytic rocks, with felsics comprising 5-20% quartz and alkali feldspar/total feldspar >0.9
Unique Identifiers
Mindat ID:
48468
Long-form identifier:
mindat:1:1:48468:8
GUID
(UUID V4):
(UUID V4):
7363fa4b-6f12-4503-a9aa-e90e3d730674
Classification of Quartz-alkali-feldspar-trachyte
- Rock
- Igneous rock
- Normal crystalline igneous rock
- Fine-grained ("volcanic") normal crystalline igneous rock
- Trachytoid
- Quartz-alkali-feldspar-trachyte
- Trachytoid
- Fine-grained ("volcanic") normal crystalline igneous rock
- Normal crystalline igneous rock
- Igneous rock
Quartz-alkali-feldspar-trachyte appears in field 6* in the QAPF diagram.
Mineralogy of Quartz-alkali-feldspar-trachyte
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. |
Silica > Quartz | SiO2 |
Internet Links for Quartz-alkali-feldspar-trachyte
mindat.org URL:
https://www.mindat.org/min-48468.html
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References for Quartz-alkali-feldspar-trachyte
Reference List: