Citation: MacDonald, D. J.; Hawthorne, F. C. (1995). The crystal chemistry of Si=Al substitution in tourmaline Sample: T74. The Canadian Mineralogist, 33, pp. 849-858.
Formula: Al5.814 B3 Ca0.697 Cr0.006 F0.835 H3.165 Li0.075 Mg3.291 Na0.288 O30.165 Si5.736 Ti0.027 V0.051
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