Citation: Bosi, F.; Lucchesi, S. (2004). Crystal chemistry of the schorl-dravite series Note: Tourmaline TMl4aa. European Journal of Mineralogy, 16, pp. 335-344.
Formula: Al6.429 B3 F0.157 Fe1.617 H0.14 K0.009 Li0.012 Mg0.879 Mn0.027 Na0.712 O30.843 Si5.964 Ti0.051 Zn0.024
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al45 B9 F3 Fe36 Li9 Mg27 Mn9 O96 Si18 Ti9 Zn9 (Al15 B3 F Fe12 Li3 Mg9 Mn3 O32 Si6 Ti3 Zn3)