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pegmatite |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Pegmatite \Peg"ma*tite\, n. [From Gr ? something fastened together, in allusion to the quartz and feldspar in graphic granite: cf F. pegmatite. See {Pegm}.] (Min.) a Graphic granite. See under {Granite}. b More generally, a coarse granite occurring as vein material in other rocks. From WordNet r 1.6 [wn]: pegmatite n : a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
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