Citation: Jenkins, D. M.; Hawthorne, F. C. (1995). Synthesis and rietveld refinement of amphibole along the join Ca2Mg5Si8O22F2 - NaCa2Mg4Ga3Si6O22F2 Sample: TREM 19-3. The Canadian Mineralogist, 33, pp. 13-24.
Formula: Ca1.92 F2 Mg5.08 O22 Si8
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F4 Mg10 O44 Si16 (F2 Mg5 O22 Si8)
Multiplicity: 1
Coordination sequences: