trondhjemite

[ tron-ye-mahyt ]
/ ˈtrɒn yɛˌmaɪt /

noun Petrology.

a coarse-grained igneous rock composed of quartz, plagioclase feldspar, and a small amount of biotite.

Origin of trondhjemite

Trondhjem (now Trondheim) + -ite1

Words nearby trondhjemite