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 #32008. American Mineralogist, 84, pp. 922-928.
Formula: Al5.439 B3 Ca0.368 F0.495 Fe1.143 H3.02 K0.029 Li0.018 Mg2.292 Mn0.012 Na0.471 O30.505 Si6 Ti0.033
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al27 B9 F3 Fe18 Li9 Mg27 Mn9 O96 Si18 Ti9 (Al9 B3 F Fe6 Li3 Mg9 Mn3 O32 Si6 Ti3)
Multiplicity: 1