Citation: Pudovkina, Z. V.; Pyatenko, Y. A. (1970). About the structure of the prosopite, Ca[Al2F4(OH)4], and about some features of the fluoroaluminate crystal chemistry. Doklady Akademii Nauk SSSR, 190, pp. 665-667.
Formula: Al2 Ca F4 H4 O4
List type: interleaving
List: 1D
Basis: (1;0;-1)
Dimensionality: 1
Formula: Al4 F8 O8 (Al F2 O2)