Citation: Ito, T.; Sadanaga, R. (1951). A Fourier analysis of the structure of tourmaline. Acta Crystallographica (1,1948-23,1967), 4, pp. 385-390.
Formula: Al7.8 B3 Ca0.125 Fe0.1 H3 Li Mn0.1 Na0.875 O31 Si6
Chemical name: (Na.875 Ca.125) (Li Al2) (Al5.8 Fe.1 Mn.1) (B O3)3 (Si6 O18) O (O H)3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al27 B9 Fe18 Li9 Mn18 O93 Si18 (Al9 B3 Fe6 Li3 Mn6 O31 Si6)
Multiplicity: 1