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

---

Etymology

Origin of gadolinite

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

Example Sentences

The following minerals produce beads with a small quantity of soda, but produce slags if too much soda is added: phenakite, pierosmine, olivine, cerite, cyanite, talc, gadolinite, lithium-tourmaline.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

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

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

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

See Y. Ytterbium, i-ter′bi-um, n. an element discovered by Marignac in gadolinite.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various