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A dark green or greenish-black silicate mineral, Be2FeY2Si2O10, containing several of the rare-earth elements in combination with iron.
[After Johan Gadolin (1760-1852), Finnish chemist.]
(Minerals) a rare brown or black mineral consisting of a silicate of iron, beryllium, and yttrium in monoclinic crystalline form. Formula: 2BeO.FeO.Y2O3.2SiO2. Also called: ytterbite
[C19: named after Johan Gadolin (1760–1852), Finnish mineralogist]
gad•o•lin•ite(ˈgæd l əˌnaɪt)
a silicate mineral from which the rare-earth metals gadolinium, holmium, and rhenium are extracted.
[1795–1805; after J. Gadolin (1760–1852), Finnish chemist; see -ite1]
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|Noun||1.||gadolinite - a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium|
atomic number 4, Be, beryllium, glucinium - a light strong brittle grey toxic bivalent metallic element
atomic number 58, Ce, cerium - a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
atomic number 68, Er, erbium - a trivalent metallic element of the rare earth group; occurs with yttrium
atomic number 64, gadolinium, Gd - a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
atomic number 67, Ho, holmium - a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
atomic number 65, Tb, terbium - a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
atomic number 70, Yb, ytterbium - a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime
atomic number 39, Y, yttrium - a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition