AM_Wollastonite-1A_1 Formula: Ca5.81 Mn.19 Si6 O18 Name: Wollastonite-1A Unit cell: 10.104 11.054 7.305 99.53 100.56 83.44 , V=788.04 Space group: C-1 (2)

Ohashi Y , Finger L W , Carnegie Institution of Washington: Yearbook , 75 (1976) p.746-753, Stepwise cation ordering in bustamite and disordering in wollastonite