Citation: Prince E (1971). Refinement of the crystal structure of apophyllite III. Determination of the hydrogen positions by neutron diffraction. American Mineralogist, 56, pp. 1243-1251.
Formula: Ca4 F H16 K O28 Si8
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: O20 Si8 (O5 Si2)
Multiplicity: 1
Coordination sequences: