KHCO3 Allan D R, Marshall W G, Pulham C R American Mineralogist 92 (2007) 1018-1025 The high-pressure crystal structure of potassium hydrogen carbonate (KHCO3) Note: Kalicinite-type structure Sample: P = 1.67 GPa _database_code_amcsd 0004368 14.663 5.5384 3.6323 90 102.527 90 P2_1/a atom x y z K .1664 .027 .309 D .0132 .701 .545 C .1181 .534 .865 O1 .1941 .547 .113 O2 .0726 .725 .725 O3 .0855 .328 .739