familygranitic
Familygranitic is a term used in petrology to describe rocks that belong to the granitoid family, a group of felsic, silica-rich igneous rocks that are commonly coarse-grained and quartz- and feldspar-dominated. The term emphasizes shared origin and mineralogy with granite while allowing inclusion of closely related granitoid lithologies.
Mineralogy and texture: The typical mineral assemblage includes quartz, alkali feldspar, and plagioclase, with minor mica,
Formation and occurrence: Familygranitic rocks crystallize from silica-rich magmas produced by partial melting of crustal rocks
Classification and notes: The term is not universally standardized and is encountered mainly in older literature
Related topics include granite, granitoid, and felsic intrusive rocks.