Citation: Oberti, R.; Hawthorne, F.C.; Ungaretti, L.; Cannillo, E. (1995). (6)Al disorder in amphiboles from mantle peridotites. Canadian Mineralogist, 33, pp. 867-878.
Formula: Al2.82 Ca1.8 Cr0.03 F0.03 Fe0.45 H1.97 K0.01 Mg3.8 Na0.92 O23.97 Si6.1
Chemical name: (Na.92 K.01) (Ca1.8 Mg.08 Fe.12) (Mg3.72 Fe.33 Al.92 Cr.03) (Si6.1 Al1.9) O22 F.03 (O H)1.97
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al14 Ca4 Cr4 F4 Fe14 H4 K4 Mg14 Na10 O48 Si16 (Al7 Ca2 Cr2 F2 Fe7 H2 K2 Mg7 Na5 O24 Si8)
Multiplicity: 1