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 = 401 C _database_code_amcsd 0006177 CELL PARAMETERS: 10.6632 10.6632 5.9222 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 583.159 Density (g/cm3): 3.471 MAX. ABS. INTENSITY / VOLUME**2: 16.18180525 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 42.52 9.2346 1 0 0 6 16.63 9.17 5.3316 1 1 0 6 17.79 16.33 4.9851 1 0 1 12 19.22 72.03 4.6173 2 0 0 6 22.44 2.57 3.9624 1 1 1 12 24.45 5.06 3.6413 2 0 1 12 25.52 2.21 3.4903 1 2 0 6 29.01 11.19 3.0782 3 0 0 6 29.71 32.58 3.0070 1 2 1 12 29.71 7.58 3.0070 2 1 1 12 31.73 2.57 2.8197 1 0 2 12 32.79 18.81 2.7313 3 0 1 12 33.62 64.56 2.6658 2 2 0 6 35.04 5.64 2.5612 1 3 0 6 35.04 4.08 2.5612 3 1 0 6 36.03 100.00 2.4926 2 0 2 12 36.98 3.48 2.4309 2 2 1 12 38.29 10.87 2.3508 1 3 1 12 38.29 3.58 2.3508 3 1 1 12 39.01 4.63 2.3086 4 0 0 6 39.93 9.98 2.2580 1 2 2 12 39.93 4.28 2.2580 2 1 2 12 42.00 7.11 2.1510 4 0 1 12 42.35 6.45 2.1340 3 0 2 12 42.68 4.84 2.1186 2 3 0 6 42.68 3.99 2.1186 3 2 0 6 45.47 3.57 1.9948 2 3 1 12 46.90 10.65 1.9371 3 1 2 12 47.07 5.11 1.9305 1 0 3 12 47.67 4.95 1.9077 1 4 1 12 47.67 1.21 1.9077 4 1 1 12 49.22 1.27 1.8512 1 1 3 12 49.34 7.73 1.8469 5 0 0 6 50.10 38.50 1.8207 4 0 2 12 50.27 1.90 1.8151 2 0 3 12 51.86 6.49 1.7632 5 0 1 12 52.43 1.25 1.7452 2 4 0 6 52.43 6.52 1.7452 4 2 0 6 53.16 2.21 1.7230 2 3 2 12 53.16 7.48 1.7230 3 2 2 12 53.32 2.42 1.7183 1 2 3 12 53.32 1.45 1.7183 2 1 3 12 54.84 1.97 1.6740 4 2 1 12 55.13 1.36 1.6660 1 4 2 12 55.13 3.51 1.6660 4 1 2 12 55.28 2.66 1.6617 3 0 3 12 55.40 1.79 1.6586 1 5 0 6 55.40 3.84 1.6586 5 1 0 6 57.72 4.50 1.5971 5 1 1 12 60.12 12.67 1.5391 6 0 0 6 60.78 2.70 1.5238 3 3 2 12 61.03 1.80 1.5182 4 3 0 6 61.70 13.65 1.5035 2 4 2 12 61.70 17.97 1.5035 4 2 2 12 62.76 8.41 1.4806 0 0 4 2 62.84 1.08 1.4787 5 2 0 6 63.23 1.57 1.4706 3 4 1 12 63.65 1.11 1.4619 1 0 4 12 64.38 1.92 1.4470 1 5 2 12 64.52 1.06 1.4443 2 3 3 12 66.30 2.52 1.4098 2 0 4 12 68.74 3.46 1.3656 6 0 2 12 69.73 2.06 1.3487 5 0 3 12 70.67 6.45 1.3329 4 4 0 6 73.11 11.03 1.2943 2 2 4 12 74.03 1.52 1.2806 2 6 0 6 74.03 1.70 1.2806 6 2 0 6 74.63 3.40 1.2718 1 6 2 12 74.76 1.15 1.2699 1 5 3 12 74.76 2.24 1.2699 5 1 3 12 76.42 1.46 1.2463 4 0 4 12 81.97 2.79 1.1754 2 6 2 12 81.97 5.10 1.1754 6 2 2 12 83.73 1.23 1.1552 5 0 4 12 85.99 1.27 1.1305 1 7 2 12 86.13 1.64 1.1290 4 2 4 12 88.53 1.13 1.1045 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.