Kalsilite Gatta G D, Angel R J, Carpenter M A American Mineralogist 95 (2010) 1027-1034 Low-temperature behavior of natural kalsilite with P31c symmetry: An in situ single-crystal X-ray diffraction study Locality: a granulite facies gneiss from the Punalur district in Kerala, India T = 225 K _database_code_amcsd 0005058 5.1627 5.1627 8.7392 90 90 120 P31c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) K 0 0 .2530 .985 .0154 .0149 .0149 .0164 .00744 0 0 AlT1 1/3 2/3 .0619 .0093 .0074 .0074 .0131 .0037 0 0 SiT2 1/3 2/3 .44384 .0081 .0089 .0089 .0065 .0044 0 0 O1 1/3 2/3 .2590 .0262 .0341 .0341 .0104 .0170 0 0 O2 .6190 .0146 1.0043 .0159 .0074 .0108 .0252 .0013 .0012 .0018