Quartz-latite
A rock classification type
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Trachytic rocks, with felsics comprising 5-20% quartz and alkali feldspar/total feldspar 0.35-0.65.
This is compositionally equivalent to the coarse-grained rock quartz-monzonite.
The extrusive or hypabyssal equivalent of a quartz monzonite. The principal minerals are quartz, sanidine, biotite, sodic plagioclase, and hornblende, commonly as phenocrysts in a groundmass of potash feldspar and quartz (or tridymite, cristobalite), or glass. Accessory minerals are magnetite, apatite, and zircon.
This is compositionally equivalent to the coarse-grained rock quartz-monzonite.
The extrusive or hypabyssal equivalent of a quartz monzonite. The principal minerals are quartz, sanidine, biotite, sodic plagioclase, and hornblende, commonly as phenocrysts in a groundmass of potash feldspar and quartz (or tridymite, cristobalite), or glass. Accessory minerals are magnetite, apatite, and zircon.
Unique Identifiers
Mindat ID:
48469
Long-form identifier:
mindat:1:1:48469:7
Classification of Quartz-latite
Quartz-latite appears in field 8* in the QAPF diagram.
Sub-divisions of Quartz-latite
- Quartz-latite
Mineralogy of Quartz-latite
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 |
Other Language Names for Quartz-latite
German:Quarzlatit
Internet Links for Quartz-latite
mindat.org URL:
https://www.mindat.org/min-48469.html
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References for Quartz-latite
Reference List:
