Citation: Hughes J M; Cameron M; Crowley K D (1991). Ordering of divalent cations in the apatite structure: Crystal structure refinements of natural Mn- and Sr-bearing apatite sample Mn1.21. American Mineralogist, 76, pp. 1857-1862.
Formula: Ca4.395 F0.74 Mn0.605 O12 P3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca10 F2 Mn10 O24 P6 (Ca5 F Mn5 O12 P3)
Multiplicity: 1