AM_Gadolinite-(Y)_7 Formula: (Y1.5 Dy.46 Ca.04) (Be1.82 B.18) Fe.78 Si2 O10 Name: Gadolinite-(Y) Unit cell: 4.757 7.553 9.97 90.0 90.5 90.0 , V=358.20 Space group: P121/C1 (14)

Demartin F , Pilati T , Diella V , Gentile P , Gramaccioli C M , The Canadian Mineralogist , 31 (1993) p.127-136, A crystal-chemical investigation of alpine gadolinite, Locality: Monte Bassetta, Val Vigezzo, Italy, Sample: 9, Note: structure from ICSD