Citation: Bosi, F.; Lucchesi, S.; Reznitskii, L. (2004). Crystal chemistry of the dravite-chromdravite series Note: Tourmaline TMpr79f. European Journal of Mineralogy, 16, pp. 345-352.
Formula: Al2.682 B3 Ca0.097 Cr3.9 F0.393 Fe0.042 H2.82 K0.014 Mg2.208 Na0.829 O30.607 Si5.982 Ti0.03 V0.147 Zn0.012
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al36 B9 Cr27 F3 Fe9 H9 Mg27 O93 Si18 Ti9 V9 Zn9 (Al12 B3 Cr9 F Fe3 H3 Mg9 O31 Si6 Ti3 V3 Zn3)
Multiplicity: 1