AM_Canaphite
Formula: Ca Na2 P2 O11 H4
Name: Canaphite
Unit cell: 5.673 8.48 10.529 90.0 106.13 90.0 , V=486.58
Space group: P1C1 (7)

Rouse R C , Peacor D R , Freed R L , American Mineralogist , 73 (1988) p.168-171, Pyrophosphate groups in the structure of canaphite, CaNa2P2O7.4(H2O): The, first occurrence of a condensed phosphate as a mineral