- a silicate mineral from which the rare-earth metals gadolinium, holmium, and rhenium are extracted.
Origin of gadolinite
Examples from the Web for gadolinite
Historical Examples of gadolinite
Yttria may be obtained from gadolinite by a similar process to that by which glucina is extracted from the beryl.Cooley's Practical Receipts, Volume II
In 1797 Ekeberg showed that gadolinite contained another rare earth, which was given the name yttria.
Ytterbium, i-ter′bi-um, n. an element discovered by Marignac in gadolinite.
- 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 2Also called: ytterbite