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 = 100 K _database_code_amcsd 0005056 5.1531 5.1531 8.7523 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 .2529 .984 .0091 .0089 .0089 .0097 .00443 0 0 AlT1 1/3 2/3 .0618 .0078 .0069 .0069 .0096 .0034 0 0 SiT2 1/3 2/3 .44388 .0052 .0054 .0054 .0049 .0027 0 0 O1 1/3 2/3 .2588 .0185 .0239 .0239 .0078 .0119 0 0 O2 .6215 .0147 1.0041 .0111 .0054 .0070 .0180 .0009 .0003 .0007