from The Century Dictionary.
- noun Same as
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun obsolete
Gadolinite: a black, vitreous mineralconsisting primarily of silicatesof various rare earthsincluding ytterbium
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
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