adjective
- relating to or having the characteristics of pegmatite, a coarse-grained igneous rock
Usage: geological
Examples
- The pegmatitic dike contained large crystals of quartz and feldspar.
- Geologists identified pegmatitic textures in the granite formation.
- The mine was known for its pegmatitic veins rich in rare minerals.
- Pegmatitic rocks often contain valuable gemstones and industrial minerals.
- The pegmatitic intrusion showed exceptionally coarse grain size.
- Students examined pegmatitic samples under magnification in geology class.