Citation: Steele, I. M.; Pluth, J. J. (1990). Crystal structure of synthetic yoshiokaite, a stuffed derivative of the tridymite structure. American Mineralogist, 75, pp. 1186-1191.
Formula: Al5.35 Ca2.676 O16 Si2.65
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al20 O34 Si20 (Al10 O17 Si10)
Multiplicity: 1