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 = 0.30 GPa _database_code_amcsd 0004365 15.097 5.6144 3.6932 90 104.110 90 P2_1/a atom x y z K .1661 .024 .304 D .0139 .696 .546 C .1207 .525 .862 O1 .1960 .537 .106 O2 .0768 .726 .728 O3 .0850 .321 .728