Citation: Oberti, R.; Vannucci, R.; Zanetti, A.; Tiepolo, M.; Brumm, R. C. (2000). A Crystal Chemical re-evaluation of amphibole/melt and amphibole/clinopyroxene DTi values in petrogenetic studies SAMPLE 24. American Mineralogist, 85, pp. 407-419.
Formula: Al0.32 Ca0.9 Fe H1.2 K1.29 Mg3.4 Na1.22 O24 Si7.44 Ti0.84
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Fe10 Mg10 O52 Si16 Ti26 (Al8 Fe5 Mg5 O26 Si8 Ti13)
Multiplicity: 1