Tuite Sugiyama K, Tokonami M Physics and Chemistry of Minerals 15 (1987) 125-130 Structure and crystal chemistry of a dense polymorph of tricalcium phosphate Ca3(PO4)2: a host to accommodate large lithophile elements in the Earth's mantle _database_code_amcsd 0007447 CELL PARAMETERS: 5.2487 5.2487 18.6735 90.000 90.000 120.000 SPACE GROUP: R-3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 445.512 Density (g/cm3): 3.468 MAX. ABS. INTENSITY / VOLUME**2: 21.80220535 RIR: 2.047 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.11 1.89 4.4165 1 0 1 6 28.68 4.40 3.1123 0 0 6 2 30.99 86.24 2.8856 0 1 5 6 34.17 100.00 2.6244 1 1 0 6 37.18 4.39 2.4182 1 1 3 12 40.87 22.48 2.2083 2 0 2 6 43.59 5.61 2.0764 0 1 8 6 43.62 9.28 2.0748 0 0 9 2 44.33 14.10 2.0435 0 2 4 6 45.19 6.68 2.0063 1 1 6 12 46.79 44.08 1.9415 2 0 5 6 52.93 2.41 1.7300 0 2 7 6 53.02 25.14 1.7273 1 0 10 6 56.54 2.14 1.6276 1 1 9 12 59.20 18.00 1.5608 1 2 5 12 61.17 13.49 1.5152 3 0 0 6 64.60 6.37 1.4428 0 2 10 6 67.72 1.13 1.3837 1 2 8 12 69.06 3.13 1.3601 2 0 11 6 71.96 17.93 1.3122 2 2 0 6 75.14 15.78 1.2643 2 1 10 12 80.39 7.85 1.1945 3 1 5 12 86.53 10.79 1.1248 1 1 15 12 88.08 2.77 1.1090 2 2 9 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.