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Gadolinite-(Y): Y2Fe++Be2Si2O10 Calciogadolinite: CaREE(Fe+++)Be2Si2O10
Comments: Black vitreous, metamict massive gadolinite-(Y) also known as calcian gadolinite.
Location: Ytterøya Mine, Røvika, Ytterøya (island), Levanger, Nord-Trondelag, Norway.
Scale: See Image.
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