pegmatite

About 0.19 uses per million words.

Meaning

1. noun A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.

Similar words

syenite dike dikes pegmatoid micropegmatite granulite porphyroid migmatite miascite pulaskite

Often followed by

and dikes veins is in bodies dykes dike at

Word family

pegmatites pegmatitic