Cesanite
Tazzoli V
Mineralogical Magazine 47 (1983) 59-63
The crystal structure of cesanite, Ca1+xNa4-x(SO4)3(OH)x*(1-x)H2O,
a sulphate isotypic of apatite
Locality: core samples of the Cesano I geothermal well, Cesano area, Latium, Italy
_database_code_amcsd 0014476
9.446 9.446 6.895 90 90 120 P6_3/m
atom     x     y      z  occ Biso  B(1,1)  B(2,2)  B(3,3)  B(1,2)   B(1,3)   B(2,3)
Na1  .3333 .6667 -.0040 0.96 1.57 .006549 .006549 .006282 .003274        0        0
Ca1  .3333 .6667 -.0040 0.04 1.57 .006549 .006549 .006282 .003274        0        0
Na2  .9902 .2441    .25 0.47  .98 .002844 .004794 .004578 .001761        0        0
Ca2  .9902 .2441    .25 0.41  .98 .002844 .004794 .004578 .001761        0        0
Na2' .3124 .0206    .25 0.06 1.69
Ca2' .3124 .0206    .25 0.06 1.69
S    .3644 .3905    .25       .86 .003543 .004099 .003988 .002572        0        0
O1   .4721 .3198    .25      1.54 .005870 .007489 .009218 .005266        0        0
O2   .4604 .5692    .25      2.84 .009192 .004666 .024517 .003048        0        0
O3   .2581 .3365  .0785      2.48 .007980 .017631 .007426 .008784 -.003727 -.005715
Wat      0     0    .25 0.47 3.98 .007837 .007837 .040937 .003918        0        0
OH       0     0    .25 0.47 3.98 .007837 .007837 .040937 .003918        0        0