from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A dark green or greenish-black silicate mineral, Be2FeY2Si2O10, containing several of the rare earths in combination with iron.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A dark, vitreous mineral that is a complex mixture of silicates of cerium, lanthanum, neodymium, yttrium, beryllium, and iron, with the chemical formula (Ce,La,Nd,Y)2FeBe2Si2O10.

from the GNU version of the Collaborative International Dictionary of English

  • n. A mineral of a nearly black color and vitreous luster, and consisting principally of the silicates of yttrium, cerium, and iron.

from The Century Dictionary and Cyclopedia

  • n. A mineral, a silicate of the yttrium and cerium metals, containing also beryllium and iron.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium


After Johan Gadolin (1760-1852), Finnish chemist.
(American Heritage® Dictionary of the English Language, Fourth Edition)
After the Finnish chemist Johan Gadolin (1760-1852), +‎ -ite. (Wiktionary)



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