Citation: Bosi, F.; Lucchesi, S. (2004). Crystal chemistry of the schorl-dravite series Note: Tourmaline TM112c. European Journal of Mineralogy, 16, pp. 335-344.
Formula: Al6.198 B3 Ca0.263 Cr0.015 F0.06 Fe0.801 H0.469 K0.003 Mg2.034 Mn0.009 Na0.559 O30.94 Si5.88 Ti0.06 V0.009
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al45 B9 Cr9 F3 Fe54 Mg27 Mn9 O96 Si18 Ti9 V9 (Al15 B3 Cr3 F Fe18 Mg9 Mn3 O32 Si6 Ti3 V3)