AM_Thortveitite_1 Formula: (Sc1.38 Y.62) (Si1.96 Al.04) O7 Name: Thortveitite Unit cell: 6.587 8.547 4.695 90.0 102.65 90.0 , V=257.91 Space group: C12/M1 (12)

Bianchi R , Pilati T , Diella V , Gamaccioli C M , Mannucci G , American Mineralogist , 73 (1988) p.601-607, A re-examination of thortveitite, Sample 2 from Setesdalen