La3Ga5SiO14
Belokoneva E L, Stefanovich S Y, Pisarevskii Y V, Mosunov A V
Russian Journal of Inorganic Chemistry 45 (2000) 1642-1651
Refined structures of La3Ga5SiO14 and Pb3Ga2Ge4O14 and the crystal-chemical regularities
in the structure and properties of compounds of the langasite family
_database_code_amcsd 0015403
8.176 8.176 5.108 90 90 120 P321
atom      x     y     z occ Biso
La   .41874     0     0      675
Ga1       0     0     0      .95
Ga2     1/3   2/3 .4682  .5  .56
Si2     1/3   2/3 .4682  .5  .56
Ga3   .7653     0    .5      .73
O1      1/3   2/3  .803      1.4
O2    .4652 .3116  .684      1.6
O3    .2211 .0801  .237      1.7