Parakeldyshite
Voronkov A A, Shumyatskaya N G, Pyatenko Y A
Journal of Structural Chemistry 11 (1970) 866-867
Crystal structure of a new natural modification of Na2Zr[Si2O7]
Locality: synthetic
_database_code_amcsd 0014056
6.66 8.83 5.42 92.75 94.25 72.33 P-1
atom    x    y    z
Na1  .874 .099 .264
Na2  .299 .492 .738
Zr   .289 .271 .220
Si1  .642 .146 .772
Si2  .935 .336 .689
O1   .296 .037 .176
O2   .884 .169 .745
O3   .497 .206 .524
O4   .557 .252 .023
O5   .002 .316 .395
O6   .123 .340 .886
O7   .300 .520 .230