Citation: Konishi, H.; Groy, T. L.; Dodony, I.; Miyawaki, R.; Matsubara, S.; Buseck, P. R. (2003). Crystal structure of protoanthophyllite: A new mineral from the Takese ultramafic complex, Japan. American Mineralogist, 88, pp. 1718-1723.
Formula: Al0.048 Fe0.622 H2 Mg6.378 Na0.048 O24 Si7.96
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Fe10 H4 Mg14 O48 Si16 (Al8 Fe5 H2 Mg7 O24 Si8)
Multiplicity: 1