noun. ['ˈpɛgməˌtaɪt'] a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.
Rhymes with Pegmatite
Sentences with pegmatite
1. Noun, singular or mass
In this region, granite and pegmatite can be found.
They are typically found growing in pegmatite pockets of quartz and weathered feldspar.