Kerimasite
Zaitsev A N, Williams C T, Britvin S N, Kuznetsova I V, Spratt J, Petrov S V, Keller J
Mineralogical Magazine 74 (2010) 803-820
Kerimasite, Ca3Zr2(Fe3+2Si)O12, a new garnet from carbonatites of Kerimasi volcano
and surrounding explosion craters, northern Tanzania
Locality: Kerimasi volcano, Tanzania
_database_code_amcsd 0018324
12.5512 12.5512 12.5512 90 90 90 Ia3d
atom     x     y     z occ  Uiso
CaX   .125     0   .25 .96 .0048
LaX   .125     0   .25 .03 .0048
MnX   .125     0   .25 .01 .0048
ZrY      0     0     0 .73 .0093
NbY      0     0     0 .22 .0093
MgY      0     0     0 .05 .0093
FeZ   .375     0   .25 .44  .013
AlZ   .375     0   .25 .28  .013
SiZ   .375     0   .25 .25  .013
TiZ   .375     0   .25 .03  .013
O    .0330 .0509 .6519     .0116