Definitions for gadoliniteˈgæd l əˌnaɪt
Random House Webster's College Dictionary
gad•o•lin•iteˈgæd l əˌnaɪt(n.)
a silicate mineral from which the rare-earth metals gadolinium, holmium, and rhenium are extracted.
Origin of gadolinite:
1795–1805; after J. Gadolin (1760–1852), Finnish chemist; see -ite1
a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
A dark, vitreous mineral that is a complex mixture of silicates of cerium, lanthanum, neodymium, yttrium, beryllium, and iron, with the chemical formula (Ce,La,Nd,Y)FeBeSiO.
a mineral of a nearly black color and vitreous luster, and consisting principally of the silicates of yttrium, cerium, and iron