Citation: Comodi, P.; Mellini, M.; Ungaretti, L.; Zanazzi, P. F. (1991). Compressibility and high pressure structure refinement of tremolite, pargasite and glaucophane Sample: pressure at 35 kbar. European Journal of Mineralogy, 3, pp. 485-499.
Formula: Al1.68 Ca0.198 Cr0.18 Fe0.21 H2 K0.02 Mg4.26 Na0.74 O24 Si6.62 Ti0.07
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Ca4 Cr4 Fe10 K2 Mg10 Na2 O48 Si16 Ti4 (Al6 Ca2 Cr2 Fe5 K Mg5 Na O24 Si8 Ti2)
Multiplicity: 1