Fontanite Hughes K-A, Burns P C American Mineralogist 88 (2003) 962-966 A new uranyl carbonate sheet in the crystal structure of fontanite, Ca[(UO2)3(CO3)2O2](H2O)6 _database_code_amcsd 0003131 CELL PARAMETERS: 6.9680 17.2760 15.3770 90.000 90.064 90.000 SPACE GROUP: P2_1/n X-RAY WAVELENGTH: 1.541838 Cell Volume: 1851.069 Density (g/cm3): 4.030 MAX. ABS. INTENSITY / VOLUME**2: 133.2919342 RIR: 10.770 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.70 8.62 11.4861 0 1 1 4 10.24 100.00 8.6380 0 2 0 2 11.51 9.79 7.6885 0 0 2 2 12.60 23.40 7.0243 0 1 2 4 13.95 1.36 6.3494 -1 0 1 2 14.86 1.71 5.9597 -1 1 1 4 14.88 1.17 5.9553 1 1 1 4 15.43 2.47 5.7431 0 2 2 4 16.44 17.34 5.3929 0 3 1 4 17.92 1.64 4.9494 -1 1 2 4 17.94 3.40 4.9444 1 1 2 4 19.26 8.49 4.6091 0 3 2 4 20.03 1.49 4.4336 -1 2 2 4 20.14 5.65 4.4080 0 2 3 4 20.56 11.64 4.3190 0 4 0 2 21.51 9.09 4.1311 -1 0 3 2 21.53 6.93 4.1267 1 0 3 2 23.13 4.75 3.8454 -1 3 2 4 23.14 6.06 3.8430 1 3 2 4 23.63 6.82 3.7655 0 4 2 4 23.71 1.87 3.7525 0 1 4 4 23.88 11.19 3.7268 -1 2 3 4 23.90 10.44 3.7236 1 2 3 4 25.57 16.77 3.4840 2 0 0 2 26.09 3.81 3.4152 2 1 0 4 26.44 6.38 3.3711 0 5 1 4 26.57 1.55 3.3543 1 3 3 4 27.00 6.27 3.3028 0 4 3 4 27.61 18.77 3.2311 2 2 0 4 28.11 1.11 3.1747 -2 0 2 2 28.32 1.43 3.1516 0 5 2 4 28.45 1.02 3.1376 -1 2 4 4 28.47 1.49 3.1350 1 2 4 4 28.59 2.00 3.1224 -2 1 2 4 28.61 4.44 3.1199 2 1 2 4 29.93 3.92 2.9853 -1 4 3 4 29.95 3.41 2.9837 1 4 3 4 29.99 1.45 2.9798 -2 2 2 4 30.54 3.42 2.9269 -2 3 1 4 30.55 1.97 2.9259 2 3 1 4 30.76 1.08 2.9070 -1 3 4 4 31.14 4.30 2.8720 -1 5 2 4 31.15 4.51 2.8710 1 5 2 4 31.79 1.68 2.8147 -1 0 5 2 32.22 1.09 2.7784 2 3 2 4 32.22 10.44 2.7781 -1 1 5 4 32.25 13.56 2.7758 1 1 5 4 33.03 3.25 2.7117 2 4 0 4 33.23 1.41 2.6964 0 6 2 4 33.48 2.71 2.6762 -1 2 5 4 33.75 1.93 2.6557 -1 4 4 4 33.77 2.03 2.6541 1 4 4 4 35.08 1.49 2.5580 -2 4 2 4 35.50 4.31 2.5288 -1 3 5 4 35.52 5.02 2.5271 1 3 5 4 35.77 3.53 2.5104 0 6 3 4 37.51 1.91 2.3978 -2 4 3 4 37.54 2.31 2.3961 2 4 3 4 38.53 1.39 2.3367 2 5 2 4 40.51 1.90 2.2269 -1 7 2 4 40.52 1.52 2.2265 1 7 2 4 42.72 1.40 2.1165 -3 0 3 2 42.76 1.64 2.1147 3 0 3 2 43.03 1.17 2.1020 -1 4 6 4 43.06 1.12 2.1008 1 4 6 4 43.10 1.13 2.0990 3 1 3 4 43.53 1.25 2.0790 0 8 2 4 43.58 2.33 2.0768 0 7 4 4 43.63 1.13 2.0747 -3 3 2 4 43.65 1.50 2.0736 3 3 2 4 44.05 3.56 2.0557 -3 2 3 4 44.09 1.83 2.0540 3 2 3 4 44.12 1.14 2.0525 0 3 7 4 44.31 1.47 2.0443 1 8 1 4 44.47 1.45 2.0373 -2 6 3 4 44.49 1.56 2.0362 2 6 3 4 45.58 1.92 1.9901 0 8 3 4 45.70 1.21 1.9851 3 3 3 4 46.37 1.98 1.9580 0 4 7 4 47.60 3.26 1.9103 0 1 8 4 48.71 1.90 1.8693 3 5 2 4 49.13 1.13 1.8545 -3 0 5 2 49.24 1.11 1.8506 1 9 0 4 49.36 1.19 1.8463 -1 6 6 4 49.38 1.24 1.8456 1 6 6 4 49.43 1.99 1.8439 -3 1 5 4 49.49 4.22 1.8419 3 1 5 4 49.61 1.23 1.8374 -1 9 1 4 50.03 1.91 1.8232 0 3 8 4 50.32 2.44 1.8131 -3 2 5 4 51.85 2.45 1.7635 3 3 5 4 52.39 1.03 1.7465 0 6 7 4 52.53 1.40 1.7420 4 0 0 2 52.82 1.48 1.7332 4 1 0 4 53.00 1.20 1.7277 2 8 3 4 53.35 1.60 1.7174 0 9 4 4 53.67 1.56 1.7076 4 2 0 4 53.72 1.15 1.7062 2 4 7 4 54.83 1.41 1.6743 2 1 8 4 60.42 1.06 1.5321 1 11 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.