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 = 247 C _database_code_amcsd 0006173 CELL PARAMETERS: 10.6340 10.6340 5.9052 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 578.309 Density (g/cm3): 3.500 MAX. ABS. INTENSITY / VOLUME**2: 16.42541819 RIR: 1.528 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.60 42.20 9.2093 1 0 0 6 16.67 8.83 5.3170 1 1 0 6 17.84 16.27 4.9710 1 0 1 12 19.28 71.78 4.6047 2 0 0 6 22.50 2.65 3.9513 1 1 1 12 24.51 5.10 3.6312 2 0 1 12 25.59 2.32 3.4808 1 2 0 6 29.09 11.29 3.0698 3 0 0 6 29.79 33.33 2.9986 1 2 1 12 29.79 7.48 2.9986 2 1 1 12 31.83 3.12 2.8116 1 0 2 12 32.88 18.84 2.7237 3 0 1 12 33.71 64.16 2.6585 2 2 0 6 35.13 4.06 2.5542 3 1 0 6 35.13 5.94 2.5542 1 3 0 6 36.14 100.00 2.4855 2 0 2 12 37.09 3.52 2.4242 2 2 1 12 38.40 11.23 2.3443 1 3 1 12 38.40 3.78 2.3443 3 1 1 12 39.13 4.72 2.3023 4 0 0 6 40.04 10.17 2.2516 1 2 2 12 40.04 4.48 2.2516 2 1 2 12 42.13 7.28 2.1451 4 0 1 12 42.48 6.75 2.1280 3 0 2 12 42.80 5.02 2.1128 2 3 0 6 42.80 4.54 2.1128 3 2 0 6 45.60 3.45 1.9893 2 3 1 12 47.04 11.25 1.9317 3 1 2 12 47.22 5.26 1.9249 1 0 3 12 47.81 5.49 1.9025 1 4 1 12 47.81 1.26 1.9025 4 1 1 12 49.37 1.31 1.8460 1 1 3 12 49.49 8.23 1.8419 5 0 0 6 50.25 39.91 1.8156 4 0 2 12 50.42 2.00 1.8100 2 0 3 12 52.01 7.08 1.7583 5 0 1 12 52.59 1.28 1.7404 2 4 0 6 52.59 6.76 1.7404 4 2 0 6 53.32 2.28 1.7182 2 3 2 12 53.32 8.04 1.7182 3 2 2 12 53.48 2.69 1.7134 1 2 3 12 53.48 1.53 1.7134 2 1 3 12 55.01 1.93 1.6694 4 2 1 12 55.30 1.42 1.6613 1 4 2 12 55.30 3.84 1.6613 4 1 2 12 55.45 2.92 1.6570 3 0 3 12 55.56 1.88 1.6540 1 5 0 6 55.56 4.18 1.6540 5 1 0 6 57.90 4.80 1.5927 5 1 1 12 60.30 13.14 1.5349 6 0 0 6 60.97 2.83 1.5196 3 3 2 12 61.22 1.91 1.5140 4 3 0 6 61.22 1.07 1.5140 3 4 0 6 61.89 14.27 1.4993 2 4 2 12 61.89 18.59 1.4993 4 2 2 12 62.96 8.76 1.4763 0 0 4 2 63.04 1.16 1.4747 5 2 0 6 63.43 1.72 1.4666 3 4 1 12 63.86 1.38 1.4577 1 0 4 12 64.58 2.04 1.4430 1 5 2 12 64.73 1.11 1.4402 2 3 3 12 65.63 1.15 1.4225 1 1 4 12 66.51 2.44 1.4058 2 0 4 12 68.95 3.77 1.3619 6 0 2 12 69.95 2.20 1.3449 5 0 3 12 70.90 6.87 1.3293 4 4 0 6 73.35 11.65 1.2907 2 2 4 12 74.19 1.04 1.2782 1 3 4 12 74.26 1.75 1.2771 6 2 0 6 74.26 1.70 1.2771 2 6 0 6 74.87 3.73 1.2683 1 6 2 12 75.00 2.57 1.2663 5 1 3 12 75.00 1.22 1.2663 1 5 3 12 76.68 1.54 1.2428 4 0 4 12 79.94 1.15 1.2001 3 4 3 12 82.25 2.85 1.1722 2 6 2 12 82.25 5.48 1.1722 6 2 2 12 84.02 1.41 1.1519 5 0 4 12 86.28 1.48 1.1274 1 7 2 12 86.43 1.77 1.1258 4 2 4 12 87.15 1.01 1.1184 1 2 5 12 88.84 1.33 1.1014 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.