Granophyric

adjectiveStandard termMining

An igneous rock texture characterized by the microscopic intergrowth of quartz and feldspar.

An igneous rock texture characterized by the microscopic, irregular intergrowth of quartz and alkali feldspar. It typically forms during the rapid, late-stage crystallization of silica-rich magma at shallow depths.

Heard on the job

The thin section shows a distinct granophyric groundmass surrounding the larger feldspar phenocrysts.