Pegmatites

Pegmatite is a textural term for igneous or metamorphic rock bodies with unusually large crystal sizes. Learn more from Dr. Panhorst.

Pegmatites

Pegmatites bodies are most commonly found in and around granitic intrusions. They are historically important sources of feldspar, micas, and quartz, as well as hosting various metals including thorium, uranium, beryllium, lithium and tungsten. Because of the large crystal sizes, pegmatites have also been a favorite of mineral collectors, particularly for beryl and tourmaline. These same deposits have had renewed interest as potential sources of lithium for use in electric vehicle batteries. This presentation will discuss the origin and occurrence of pegmatites, with physical specimens from various pegmatite bodies.

The Lecturer:

Dr. Terry Panhorst PhD, PG. (University of Nevada), Retired Professor of Geology and Geological Engineering at the University of Mississippi. Dr. Panhorst is very involved at the Idaho Museum of Mining and Geology in Boise, assisting with outreach activities and special events. He also leads upper level geology field tours and is a frequent lecturer for both the museum and outside organizations.

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