Citation: Hazen, R. M.; Finger, L. W. (1978). The crystal structures and compressibilities of layer minerals at high pressure. II. Phlogopite and chlorite P = 35 kbar, sample is from Franklin, New Jersey, USA. American Mineralogist, 63, pp. 293-296.
Formula: Al1.048 Ba0.05 F1.3 H0.7 K0.76 Mg3 Na0.16 O10.7 Si2.952
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 F4 Mg6 O24 Si8 (Al4 F2 Mg3 O12 Si4)
Multiplicity: 1