Citation: Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V. (1999). Linking structure and chemistry in the schorl-dravite series Sample O-T16-92. American Mineralogist, 84, pp. 922-928.
Formula: Al6.516 B3 Ca0.156 Cr0.009 F0.06 Fe1.026 H3.094 K0.015 Mg1.359 Mn0.006 Na0.348 O30.94 Si6 Ti0.069 V0.006
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al27 B9 Cr9 F3 Fe18 Mg27 Mn9 O96 Si18 Ti9 V9 (Al9 B3 Cr3 F Fe6 Mg9 Mn3 O32 Si6 Ti3 V3)
Multiplicity: 1