Gaudefroyite Antao S M, Hassan I The Canadian Mineralogist 46 (2008) 183-193 Gaudefroyite, Ca8Mn3+6[(BO3)6(CO3)2O6]: high-temperature crystal structure Locality: Wessels mine, Kalahari manganese field, South Africa Sample: T = 384 C _database_code_amcsd 0006176 CELL PARAMETERS: 10.6600 10.6600 5.9204 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 582.633 Density (g/cm3): 3.474 MAX. ABS. INTENSITY / VOLUME**2: 16.19219045 RIR: 1.518 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.58 42.69 9.2318 1 0 0 6 16.63 9.13 5.3300 1 1 0 6 17.80 16.33 4.9836 1 0 1 12 19.23 71.79 4.6159 2 0 0 6 22.44 2.63 3.9612 1 1 1 12 24.45 5.05 3.6403 2 0 1 12 25.53 2.25 3.4893 1 2 0 6 29.02 11.31 3.0773 3 0 0 6 29.72 32.66 3.0061 1 2 1 12 29.72 7.57 3.0061 2 1 1 12 31.74 2.66 2.8188 1 0 2 12 32.80 18.86 2.7305 3 0 1 12 33.63 64.37 2.6650 2 2 0 6 35.05 5.69 2.5604 1 3 0 6 35.05 4.09 2.5604 3 1 0 6 36.04 100.00 2.4918 2 0 2 12 36.99 3.52 2.4301 2 2 1 12 38.30 3.62 2.3501 3 1 1 12 38.30 10.93 2.3501 1 3 1 12 39.03 4.65 2.3080 4 0 0 6 39.94 10.05 2.2573 1 2 2 12 39.94 4.33 2.2573 2 1 2 12 42.02 7.18 2.1503 4 0 1 12 42.37 6.52 2.1334 3 0 2 12 42.69 4.86 2.1179 2 3 0 6 42.69 4.10 2.1179 3 2 0 6 45.48 3.58 1.9942 2 3 1 12 46.92 10.78 1.9365 3 1 2 12 47.09 5.17 1.9299 1 0 3 12 47.68 5.04 1.9072 1 4 1 12 47.68 1.22 1.9072 4 1 1 12 49.23 1.29 1.8507 1 1 3 12 49.36 7.84 1.8464 5 0 0 6 50.12 38.78 1.8201 4 0 2 12 50.28 1.92 1.8146 2 0 3 12 51.87 6.62 1.7626 5 0 1 12 52.45 1.26 1.7446 2 4 0 6 52.45 6.57 1.7446 4 2 0 6 53.18 2.23 1.7225 2 3 2 12 53.18 7.54 1.7225 3 2 2 12 53.33 2.46 1.7178 1 2 3 12 53.33 1.47 1.7178 2 1 3 12 54.86 1.97 1.6735 4 2 1 12 55.15 1.36 1.6655 1 4 2 12 55.15 3.57 1.6655 4 1 2 12 55.30 2.71 1.6612 3 0 3 12 55.41 1.82 1.6581 1 5 0 6 55.41 3.88 1.6581 5 1 0 6 57.74 4.53 1.5966 5 1 1 12 60.14 12.78 1.5386 6 0 0 6 60.80 2.72 1.5234 3 3 2 12 61.06 1.81 1.5177 4 3 0 6 61.72 13.77 1.5030 2 4 2 12 61.72 18.10 1.5030 4 2 2 12 62.78 8.46 1.4801 0 0 4 2 62.87 1.09 1.4783 5 2 0 6 63.25 1.60 1.4702 3 4 1 12 63.67 1.15 1.4614 1 0 4 12 64.41 1.93 1.4466 1 5 2 12 64.54 1.07 1.4438 2 3 3 12 65.44 1.01 1.4261 1 1 4 12 66.32 2.52 1.4094 2 0 4 12 68.76 3.52 1.3652 6 0 2 12 69.75 2.09 1.3483 5 0 3 12 70.70 6.52 1.3325 4 4 0 6 73.14 11.14 1.2939 2 2 4 12 74.05 1.54 1.2802 2 6 0 6 74.05 1.72 1.2802 6 2 0 6 74.65 3.47 1.2714 1 6 2 12 74.78 1.17 1.2695 1 5 3 12 74.78 2.28 1.2695 5 1 3 12 76.45 1.48 1.2459 4 0 4 12 79.70 1.02 1.2031 3 4 3 12 82.00 2.81 1.1750 2 6 2 12 82.00 5.14 1.1750 6 2 2 12 83.76 1.26 1.1548 5 0 4 12 86.02 1.31 1.1302 1 7 2 12 86.16 1.66 1.1287 4 2 4 12 88.56 1.15 1.1042 5 1 4 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.