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 HP2-1. American Mineralogist, 84, pp. 922-928.
Formula: Al6.639 B3 Ca0.027 F0.204 Fe1.671 H3.396 K0.025 Mg0.636 Mn0.012 Na0.54 O30.796 Si6 Ti0.009 V0.006 Zn0.006
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al27 B9 F3 Fe9 Mg27 Mn9 O96 Si18 Ti9 V9 Zn9 (Al9 B3 F Fe3 Mg9 Mn3 O32 Si6 Ti3 V3 Zn3)
Multiplicity: 1