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.

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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

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Etymology

Origin of gadolinite

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

Example Sentences

It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc., and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated.

From The Gutenberg Webster's Unabridged Dictionary Section I, J, K, and L by Project Gutenberg

The first of the rare earth minerals was discovered in 1794 by J. Gadolin and was named gadolinite from its discoverer.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

Yttria is found in gadolinite and some other rare minerals.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

Erbium, er′bi-um, n. a rare metal, the compounds of which are present in the mineral gadolinite, found at Ytterby in Sweden.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various

The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various