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 = 452 C _database_code_amcsd 0006178 CELL PARAMETERS: 10.6703 10.6703 5.9262 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 584.324 Density (g/cm3): 3.464 MAX. ABS. INTENSITY / VOLUME**2: 16.07371687 RIR: 1.511 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.57 42.40 9.2407 1 0 0 6 16.62 9.36 5.3351 1 1 0 6 17.78 16.27 4.9885 1 0 1 12 19.21 71.97 4.6204 2 0 0 6 22.42 2.54 3.9650 1 1 1 12 24.43 5.04 3.6438 2 0 1 12 25.50 2.14 3.4927 1 2 0 6 28.99 11.24 3.0802 3 0 0 6 29.69 32.55 3.0090 1 2 1 12 29.69 7.65 3.0090 2 1 1 12 31.71 2.39 2.8216 1 0 2 12 32.77 18.98 2.7331 3 0 1 12 33.60 64.57 2.6676 2 2 0 6 35.01 5.67 2.5629 1 3 0 6 35.01 4.11 2.5629 3 1 0 6 36.01 100.00 2.4942 2 0 2 12 36.95 3.41 2.4325 2 2 1 12 38.26 10.70 2.3524 1 3 1 12 38.26 3.50 2.3524 3 1 1 12 38.99 4.61 2.3102 4 0 0 6 39.90 9.94 2.2595 1 2 2 12 39.90 4.32 2.2595 2 1 2 12 41.98 7.02 2.1524 4 0 1 12 42.32 6.37 2.1354 3 0 2 12 42.65 4.76 2.1200 2 3 0 6 42.65 3.85 2.1200 3 2 0 6 45.44 3.59 1.9961 2 3 1 12 46.87 10.51 1.9384 3 1 2 12 47.04 5.07 1.9317 1 0 3 12 47.64 4.81 1.9090 1 4 1 12 47.64 1.20 1.9090 4 1 1 12 49.18 1.25 1.8525 1 1 3 12 49.31 7.64 1.8481 5 0 0 6 50.07 38.04 1.8219 4 0 2 12 50.23 1.88 1.8163 2 0 3 12 51.82 6.34 1.7643 5 0 1 12 52.39 1.25 1.7463 2 4 0 6 52.39 6.51 1.7463 4 2 0 6 53.12 2.21 1.7241 2 3 2 12 53.12 7.42 1.7241 3 2 2 12 53.28 2.33 1.7194 1 2 3 12 53.28 1.43 1.7194 2 1 3 12 54.80 1.97 1.6751 4 2 1 12 55.09 1.33 1.6671 1 4 2 12 55.09 3.49 1.6671 4 1 2 12 55.24 2.56 1.6628 3 0 3 12 55.36 1.79 1.6597 1 5 0 6 55.36 3.76 1.6597 5 1 0 6 57.68 4.37 1.5982 5 1 1 12 60.07 12.42 1.5401 6 0 0 6 60.74 2.64 1.5248 3 3 2 12 60.99 1.78 1.5192 4 3 0 6 61.65 13.34 1.5045 2 4 2 12 61.65 17.80 1.5045 4 2 2 12 62.71 8.30 1.4815 0 0 4 2 62.80 1.07 1.4797 5 2 0 6 63.18 1.54 1.4716 3 4 1 12 63.61 1.02 1.4629 1 0 4 12 64.34 1.88 1.4480 1 5 2 12 64.47 1.05 1.4452 2 3 3 12 66.25 2.55 1.4108 2 0 4 12 68.68 3.37 1.3665 6 0 2 12 69.67 2.02 1.3496 5 0 3 12 70.62 6.31 1.3338 4 4 0 6 73.06 10.77 1.2952 2 2 4 12 73.97 1.47 1.2815 2 6 0 6 73.97 1.66 1.2815 6 2 0 6 74.57 3.29 1.2726 1 6 2 12 74.70 2.10 1.2707 5 1 3 12 74.70 1.12 1.2707 1 5 3 12 76.36 1.42 1.2471 4 0 4 12 81.91 2.75 1.1762 2 6 2 12 81.91 4.97 1.1762 6 2 2 12 83.66 1.19 1.1560 5 0 4 12 85.92 1.24 1.1313 1 7 2 12 86.06 1.60 1.1298 4 2 4 12 88.46 1.07 1.1052 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.