Citation: Hawthorne, F.C. (1976). The crystal chemistry of the amphiboles: V. The structure and chemistry of arfvedsonite. Canadian Mineralogist, 14, pp. 346-356.
Formula: Al0.31 Ca0.16 F0.7 Fe4.52 H K0.71 Mg0.11 Mn0.13 Na2.14 O23.3 Si7.84 Ti0.09
Chemical name: K.71 Na2.14 Ca.16 Mg.11 Fe4.52 Mn.13 Ti.09 Al.31 Si7.84 O22.3 (O H) F.7
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 F4 Fe14 Mg2 Mn2 O48 Si16 Ti4 (Al6 F2 Fe7 Mg Mn O24 Si8 Ti2)
Multiplicity: 1