Citation: Bosi, F.; Lucchesi, S.; Reznitskii, L. (2004). Crystal chemistry of the dravite-chromdravite series Note: Tourmaline TM1p43e. European Journal of Mineralogy, 16, pp. 345-352.
Formula: Al3.354 B3 Ca0.028 Cr3.15 F0.259 Fe0.036 H3.034 K0.022 Mg2.169 Na0.888 O30.741 Si5.988 Ti0.003 V0.279 Zn0.015
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al45 B9 Cr27 F3 Fe18 H9 Mg27 O96 Si18 Ti9 V27 Zn9 (Al15 B3 Cr9 F Fe6 H3 Mg9 O32 Si6 Ti3 V9 Zn3)