eucryptite
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eucryptite
[yü′krip‚tīt] (mineralogy)
LiAlSiO4 A colorless or white lithium aluminum silicate mineral, crystallizing in the hexagonal system; specific gravity is 2.67.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
The Londonderry feldspar pegmatite has been a well known source for gem petalite, excellent ixiolite and columbite crystals, and the rare minerals
eucryptite, bavenite, bityite and moraesite.
spodumene (including kunzite), petalite or
eucryptite, which are present elsewhere in the world in complex pe gmatites of this type.
This ion produces the deep red luminescence common in feldspars and is probably responsible for the deep red emission of many scapolites,
eucryptite, and other silicates.
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