PEGMATITES

Scrabble 15 Words With Friends 18

Scrabble letter values: P₃E₁G₂M₃A₁T₁I₁T₁E₁S₁ = 15

Definition

PEGMATITES is the plural of PEGMATITE.

noun PEGMATITE: a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.