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 = 486 C _database_code_amcsd 0006179 CELL PARAMETERS: 10.6747 10.6747 5.9298 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 585.171 Density (g/cm3): 3.459 MAX. ABS. INTENSITY / VOLUME**2: 15.86274072 RIR: 1.493 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.57 42.92 9.2445 1 0 0 6 16.61 10.01 5.3373 1 1 0 6 17.77 16.51 4.9913 1 0 1 12 19.20 71.96 4.6223 2 0 0 6 22.41 2.59 3.9671 1 1 1 12 24.42 5.10 3.6456 2 0 1 12 25.49 2.05 3.4941 1 2 0 6 28.98 11.46 3.0815 3 0 0 6 29.68 32.79 3.0104 1 2 1 12 29.68 7.87 3.0104 2 1 1 12 31.69 2.20 2.8233 1 0 2 12 32.75 18.97 2.7343 3 0 1 12 33.58 65.27 2.6687 2 2 0 6 35.00 5.96 2.5640 1 3 0 6 35.00 4.18 2.5640 3 1 0 6 35.99 100.00 2.4956 2 0 2 12 36.94 3.09 2.4336 2 2 1 12 38.24 10.56 2.3534 1 3 1 12 38.24 3.43 2.3534 3 1 1 12 38.97 4.46 2.3111 4 0 0 6 39.88 10.13 2.2607 1 2 2 12 39.88 4.36 2.2607 2 1 2 12 41.96 6.88 2.1534 4 0 1 12 42.30 6.51 2.1365 3 0 2 12 42.63 4.71 2.1208 2 3 0 6 42.63 3.77 2.1208 3 2 0 6 45.42 3.65 1.9970 2 3 1 12 46.84 10.66 1.9394 3 1 2 12 47.01 5.06 1.9329 1 0 3 12 47.61 4.71 1.9098 1 4 1 12 47.61 1.20 1.9098 4 1 1 12 49.15 1.23 1.8536 1 1 3 12 49.29 7.51 1.8489 5 0 0 6 50.04 37.89 1.8228 4 0 2 12 50.20 1.89 1.8174 2 0 3 12 51.79 6.08 1.7651 5 0 1 12 52.37 1.31 1.7471 2 4 0 6 52.37 6.40 1.7471 4 2 0 6 53.09 2.23 1.7250 2 3 2 12 53.09 7.47 1.7250 3 2 2 12 53.24 2.26 1.7204 1 2 3 12 53.24 1.48 1.7204 2 1 3 12 54.78 1.94 1.6758 4 2 1 12 55.06 1.32 1.6679 1 4 2 12 55.06 3.61 1.6679 4 1 2 12 55.21 2.43 1.6638 3 0 3 12 55.33 1.75 1.6604 1 5 0 6 55.33 3.77 1.6604 5 1 0 6 57.65 4.28 1.5989 5 1 1 12 60.05 12.17 1.5408 6 0 0 6 60.71 2.48 1.5255 3 3 2 12 60.96 1.72 1.5198 4 3 0 6 61.62 13.03 1.5052 2 4 2 12 61.62 17.87 1.5052 4 2 2 12 62.67 8.30 1.4825 0 0 4 2 62.77 1.06 1.4803 5 2 0 6 63.15 1.60 1.4722 3 4 1 12 64.30 1.88 1.4487 1 5 2 12 64.44 1.00 1.4460 2 3 3 12 66.20 2.57 1.4116 2 0 4 12 68.65 3.18 1.3672 6 0 2 12 69.63 1.98 1.3503 5 0 3 12 70.59 6.28 1.3343 4 4 0 6 73.01 10.52 1.2959 2 2 4 12 73.93 1.45 1.2820 2 6 0 6 73.93 1.60 1.2820 6 2 0 6 74.53 3.20 1.2732 1 6 2 12 74.66 1.08 1.2713 1 5 3 12 74.66 1.97 1.2713 5 1 3 12 76.31 1.31 1.2478 4 0 4 12 81.86 2.72 1.1767 2 6 2 12 81.86 4.77 1.1767 6 2 2 12 83.60 1.18 1.1566 5 0 4 12 85.87 1.26 1.1318 1 7 2 12 86.00 1.52 1.1304 4 2 4 12 88.40 1.04 1.1058 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.