Citation: MacDonald, D. J.; Hawthorne, F. C. (1995). The crystal chemistry of Si=Al substitution in tourmaline Sample: T75. The Canadian Mineralogist, 33, pp. 849-858.
Formula: Al6.132 B3 Ca0.768 Cr0.006 F0.737 H3.263 Li0.111 Mg3.108 Na0.205 O30.263 Si5.55 Ti0.033 V0.06
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al36 B9 Cr9 F3 Li9 Mg27 O93 Si18 Ti9 V9 (Al12 B3 Cr3 F Li3 Mg9 O31 Si6 Ti3 V3)
Multiplicity: 1