AM_Fermorite
Formula: (Ca4.2 Sr.8) As1.47 P1.44 O13.31 F.345 H1.31
Name: Fermorite
Unit cell: 9.5935 9.5966 6.9754 90.0 90.0 119.971 , V=556.32
Space group: P1121/M (11)

Hughes J M , Drexler J W , Neues Jahrbuch fur Mineralogie, Monatshefte , 1991 (1991) p.327-336, Cation substitution in the apatite tetrahedral site:, crystal structures of type hydroxylellestadtite and type fermorite, Locality: Sitipar deposit, India