gadolinite

[ gad-l-uh-nahyt ]

noun

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

gadolinite

/ ˈɡædəlɪˌnaɪt /

noun

1. 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 Also calledytterbite

Word History and Origins

Origin of gadolinite¹

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

Word History and Origins

Origin of gadolinite¹

C19: named after Johan Gadolin (1760–1852), Finnish mineralogist

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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 Project Gutenberg