a silicate mineral from which the rare-earth metals gadolinium, holmium, and rhenium are extracted.

Origin of gadolinite

1795–1805; named after J. Gadolin (1760–1852), Finnish chemist; see -ite1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of gadolinite

British Dictionary definitions for gadolinite



a rare brown or black mineral consisting of a silicate of iron, beryllium, and yttrium in monoclinic crystalline form. Formula: 2BeO.FeO.Y 2 O 3 .2SiO 2Also called: ytterbite

Word Origin for gadolinite

C19: named after Johan Gadolin (1760–1852), Finnish mineralogist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012