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 = 175 K _database_code_amcsd 0005057 5.1589 5.1589 8.7438 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 .2532 .980 .0130 .0124 .0124 .0142 .00621 0 0 AlT1 1/3 2/3 .0619 .0101 .0093 .0093 .0115 .0047 0 0 SiT2 1/3 2/3 .44386 .0064 .0064 .0064 .0064 .0032 0 0 O1 1/3 2/3 .2591 .0237 .0302 .0302 .0106 .0151 0 0 O2 .6196 .0137 1.0032 .0145 .0066 .0104 .0223 .0012 .0001 .0019