Citation: Witzke, T.; Steins, M.; Doering, T.; Schuckmann, W.; Wegner, R.; Pollmann, H. (2011). Fluornatromicrolite, (Na,Ca,Bi)2Ta2O6F, a new mineral species from Quixaba, Paraiba, Brazil. The Canadian Mineralogist, 49, pp. 1105-1110.
Formula: Bi0.15 Ca0.65 F Na1.11 O6 Ta2
List type: interleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O48 Ta16 (O3 Ta)
Multiplicity: 1
Coordination sequences:
Formula: Bi16 Ca16 F8 Na16 (Bi2 Ca2 F Na2)