A new model for the structure of gallobicchulite, Ca8(Ga2SiO6)4(OH)8, has been derived from a combined refinement of EXAFS and neutron powder diffraction data. The structure is based on a pseudocubic ordered unit cell, related to that of tugtupite, with long-range disorder owing to domains in three orientations parallel to the cubic faces.
|Number of pages||6|
|Journal||Acta Crystallographica Section B-Structural Science|
|Publication status||Published - 1 Oct 1998|
Binsted, N., Dann, S. E., Pack, M. J., & Weller, M. T. (1998). Structure of gallobicchulite. A combined EXAFS/neutron powder diffraction refinement. Acta Crystallographica Section B-Structural Science, 54(5), 558-563. https://doi.org/10.1107/S0108768198000548