Pegmatite

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(peg-ma-tite) 3 syllables

Definition

noun. A coarse-grained igneous rock with interlocking crystals, usually found as irregular dikes and veins, often containing rare minerals.

Example Sentence

The geologist examined the pegmatite for its unique mineral composition.

More Example Sentences

Pegmatite formations are known for containing large crystals and rare minerals.

Synonyms

granite; aplite; quartz

Antonyms

basalt; rhyolite; scoria

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Pegmatite
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