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