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A gabbro with the felsic minerals comprising more than 5% quartz.
Classification of Quartz-gabbroHide
Sub-divisions of Quartz-gabbroHide
Mineralogy of Quartz-gabbroHide
Essential minerals - these are minerals that are required within the classification of this rock:
|Feldspar > Plagioclase||A petrological term for Albite-Anorthite Series.|
|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: