Glossary · term

Pegmatite

Mineralogy

Aliases
pegmatites
Domain
Mineralogy

Definition

A very coarse-grained igneous rock, the last liquid of a cooling granite, where rare elements — lithium, tantalum, beryllium — concentrate in big crystals.

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From the Glossary database in Notion, last edited 2026-08-17. This page is the row, rendered by the build; nothing on it is written by hand.