AM_Grossular Formula: Si3 Al2 (Ca1.35 Fe.84 Mn.81) O12 Name: Grossular Unit cell: 11.69 11.69 11.69 90.0 90.0 90.0 , V=1597.51 Space group: IA-3D (230)

Novak G A , Gibbs G V , American Mineralogist , 56 (1971) p.791-825, The crystal chemistry of the silicate garnets, sample Mn-Gr