Gadolinite-(Y) : Y2Fe2+Be2Si2O10
Biotite : K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mindat locality:
13cm x 9cm x 2.5cm
Collected by:
Photo added to mindat.org
“A Sharp crystal of Gadolinite-(Y)4.5cm x 1.8cm on a 13cm x 9cm x 2.5cm specimen (Biotite) from Iveland, Aust-Agder, Norway. Found in 2017. Specimen and photo: Sascha Gemballa”
Sascha Gemballa - 13th August 2017
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