Quartz-monzogabbro
A rock classification type
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A gabbroic rock with the felsic minerals dominated by calcic plagioclase, and including 5-20% quartz, and 10-35% K-feldspar.
Unique Identifiers
Mindat ID:
48313
Long-form identifier:
mindat:1:1:48313:9
GUID
(UUID V4):
(UUID V4):
f0cf319b-1b74-475a-9022-0e9473ddd85a
Classification of Quartz-monzogabbro
Quartz-monzogabbro is in section 9* of the QAPF diagram.
Sub-divisions of Quartz-monzogabbro
Mineralogy of Quartz-monzogabbro
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 |
| Mafic minerals | A petrological term for dark, rock-forming minerals rich in magnesium and/or iron. |
| Silica > Quartz | SiO2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Amphibole > Hornblende | A commonly used informal name for dark green to black amphiboles, largely in the Hornblende Root Name ... |
| Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Internet Links for Quartz-monzogabbro
mindat.org URL:
https://www.mindat.org/min-48313.html
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References for Quartz-monzogabbro
Reference List:
