Canaphite Rouse R C, Peacor D R, Freed R L American Mineralogist 73 (1988) 168-171 Pyrophosphate groups in the structure of canaphite, CaNa2P2O7.4(H2O): The first occurrence of a condensed phosphate as a mineral _database_code_amcsd 0001137 5.673 8.48 10.529 90 106.13 90 Pc atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ca 0 .0124 0 .0136 .0163 .0099 .0001 .0038 .0000 Na1 .2252 .3982 .9621 .0250 .0231 .0273 -.0019 -.0032 -.0006 Na2 .7417 .3669 .4665 .0259 .0227 .0257 .0005 .0062 .0081 P1 .1791 .2411 .2924 .0156 .0098 .0107 .0012 .0037 .0012 P2 .3891 .0739 .8096 .0131 .0081 .0101 -.0027 .0054 -.0012 O1 .3308 .9027 .1626 .0193 .0163 .0150 -.0035 .0069 -.0039 OH2 .7769 .8527 .1165 .0166 .0223 .0177 -.0027 .0049 -.0016 O3 .0736 .2224 .1462 .0225 .0161 .0182 -.0024 .0048 -.0024 OH4 .1501 .5852 .1156 .0204 .0226 .0244 .0041 .0004 .0040 O5 .9956 .2055 .3688 .0172 .0132 .0224 .0021 .0082 .0006 O6 .3209 .3900 .3306 .0172 .0108 .0174 -.0104 -.0058 -.0079 OH7 .8044 .5858 .3460 .0232 .0179 .0298 -.0019 .0033 .0054 OH8 .6257 .3879 .1130 .0195 .0409 .0350 .0009 .0000 -.0134 O9 .6434 .8721 .3819 .0107 .0186 .0147 .0013 -.0032 -.0010 O10 .1933 .8578 .3636 .0161 .0164 .0158 -.0045 .0097 -.0034 O11 .3969 .1115 .3392 .0195 .0078 .0267 .0011 .0076 -.0010