Gottardi G
American Mineralogist 45 (1960) 1-14
The crystal structure of perrierite
_database_code_amcsd 0000090
13.61 5.62 11.63 90 113.47 90 C2/m
atom x y z occ Biso
Si1 .4085 0 .734 .96 .65
Al1 .4085 0 .734 .04 .65
Si2 .1615 0 .546 .96 .65
Al2 .1615 0 .546 .04 .65
Ti 0 .25 0 .65
Ti .27 0 0 .74 .65
Fe .27 0 0 .12 .65
Mg .27 0 0 .12 .65
Fe 0 .5 .5 .63 .65
Ca 0 .5 .5 .34 .65
Ce1 .238 0 .266 .578 .65
La1 .238 0 .266 .125 .65
Y1 .238 0 .266 .040 .65
Th1 .238 0 .266 .048 .65
Ca1 .238 0 .266 .133 .65
Na1 .238 0 .266 .078 .65
Ce2 .047 0 .742 .578 .65
La2 .047 0 .742 .125 .65
Y2 .047 0 .742 .040 .65
Th2 .047 0 .742 .048 .65
Ca2 .047 0 .742 .133 .65
Na2 .047 0 .742 .078 .65
O1 .085 .25 .194 .65
O2 .291 .25 .123 .65
O3 .3745 .25 .400 .65
O4 .103 0 .997 .65
O5 .397 0 .003 .65
O6 .492 0 .660 .65
O7 .286 0 .657 .65
O8 .1385 0 .399 .65
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