AM_Prosopite_1 Formula: Ca Al2 F4 (O4 H4) Name: Prosopite Unit cell: 6.76 11.12 7.32 90.0 95.0 90.0 , V=548.16 Space group: C12/C1 (15)

Pudovkina Z V , Chernitsova N M , Pyatenko Y A , Journal of Structural Chemistry , 14 (1973) p.345-347, Refinement of the crystalline structure of prosopite, CaAl2F4(OH)4