Citation: Antao, S. M.; Hassan, I.; Parise, J. B. (2004). Tugtupite: High-temperature structures obtained from in situ synchrotron diffraction and Rietveld refinements T = 306 C. American Mineralogist, 89, pp. 492-497.
Formula: Al Be Cl Na4 O12 Si4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al2 O24 Si8 (Al O12 Si4)
Multiplicity: 1
Coordination sequences: