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Gadolinite
Nesosilicate mineral / From Wikipedia, the free encyclopedia
Gadolinite, sometimes known as ytterbite, is a silicate mineral consisting principally of the silicates of cerium, lanthanum, neodymium, yttrium, beryllium, and iron with the formula (Ce,La,Nd,Y)2FeBe2Si2O10. It is called gadolinite-(Ce) or gadolinite-(Y), depending on the prominent composing element (Y if yttrium predominates, and Ce if cerium). It may contain 35.5% yttria sub-group rare earths, 2.2% ceria earths, as much as to 11.6% BeO, and traces of thorium. It is found in Sweden, Norway, and the US (Texas and Colorado).
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Quick Facts General, Category ...
Gadolinite | |
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![]() Gadolinite (black portion at top) | |
General | |
Category | Nesosilicate |
Formula (repeating unit) | (Ce,La,Nd,Y)2FeBe2Si2O10 |
IMA symbol | Gad[1] |
Strunz classification | 9.AJ.20 |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) (same H-M symbol) |
Space group | P21/n |
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