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gadolinite

American  
[gad-l-uh-nahyt] / ˈgæd l əˌnaɪt /

noun

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

gadolinite British  
/ ˈɡædəlɪˌnaɪt /

noun

  1. Also called: ytterbite.  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 2

"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

Etymology

Origin of gadolinite

1795–1805; named after J. Gadolin (1760–1852), Finnish chemist; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.