Citation: Welch, M. D.; Knight, K. S. (1999). A neutron powder diffraction study of cation ordering in high-temperature synthetic amphiboles. European Journal of Mineralogy, 11, pp. 321-331.
Formula: Al3 Ca2 H2 Mg4 Na O24 Si6
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al22 H4 Mg10 O48 Si16 (Al11 H2 Mg5 O24 Si8)
Multiplicity: 1