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 = 93 C _database_code_amcsd 0006170 CELL PARAMETERS: 10.6113 10.6113 5.8906 90.000 90.000 120.000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 574.418 Density (g/cm3): 3.524 MAX. ABS. INTENSITY / VOLUME**2: 16.71745679 RIR: 1.545 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.62 42.24 9.1896 1 0 0 6 16.71 8.73 5.3056 1 1 0 6 17.89 16.25 4.9592 1 0 1 12 19.32 71.76 4.5948 2 0 0 6 22.55 2.81 3.9423 1 1 1 12 24.57 5.23 3.6230 2 0 1 12 25.65 2.47 3.4734 1 2 0 6 29.15 11.22 3.0632 3 0 0 6 29.86 33.71 2.9920 1 2 1 12 29.86 7.51 2.9920 2 1 1 12 31.91 3.42 2.8048 1 0 2 12 32.96 18.74 2.7177 3 0 1 12 33.79 64.02 2.6528 2 2 0 6 35.21 4.03 2.5487 3 1 0 6 35.21 6.17 2.5487 1 3 0 6 36.23 100.00 2.4796 2 0 2 12 37.17 3.52 2.4189 2 2 1 12 38.49 11.72 2.3392 1 3 1 12 38.49 3.85 2.3392 3 1 1 12 39.21 4.74 2.2974 4 0 0 6 40.14 10.32 2.2464 1 2 2 12 40.14 4.65 2.2464 2 1 2 12 42.22 7.40 2.1404 4 0 1 12 42.58 7.06 2.1231 3 0 2 12 42.90 5.17 2.1082 2 3 0 6 42.90 5.01 2.1082 3 2 0 6 45.71 3.45 1.9850 2 3 1 12 47.16 11.73 1.9273 3 1 2 12 47.34 5.41 1.9202 1 0 3 12 47.92 5.87 1.8984 1 4 1 12 47.92 1.28 1.8984 4 1 1 12 49.50 1.38 1.8415 1 1 3 12 49.60 8.55 1.8379 5 0 0 6 50.37 41.01 1.8115 4 0 2 12 50.55 2.11 1.8056 2 0 3 12 52.13 7.49 1.7545 5 0 1 12 52.71 1.27 1.7367 2 4 0 6 52.71 6.87 1.7367 4 2 0 6 53.45 2.33 1.7143 2 3 2 12 53.45 8.51 1.7143 3 2 2 12 53.62 2.94 1.7093 1 2 3 12 53.62 1.60 1.7093 2 1 3 12 55.14 1.97 1.6658 4 2 1 12 55.43 1.45 1.6576 1 4 2 12 55.43 4.05 1.6576 4 1 2 12 55.60 3.13 1.6531 3 0 3 12 55.69 1.93 1.6505 1 5 0 6 55.69 4.44 1.6505 5 1 0 6 58.03 5.13 1.5893 5 1 1 12 60.44 13.73 1.5316 6 0 0 6 61.12 2.97 1.5162 3 3 2 12 61.37 1.11 1.5108 3 4 0 6 61.37 2.03 1.5108 4 3 0 6 62.04 14.92 1.4960 2 4 2 12 62.04 19.39 1.4960 4 2 2 12 63.13 9.20 1.4727 0 0 4 2 63.19 1.17 1.4715 5 2 0 6 63.58 1.89 1.4634 3 4 1 12 64.03 1.55 1.4541 1 0 4 12 64.74 2.18 1.4398 1 5 2 12 64.90 1.18 1.4369 2 3 3 12 65.81 1.25 1.4190 1 1 4 12 66.70 2.42 1.4024 2 0 4 12 69.13 4.02 1.3589 6 0 2 12 70.13 2.37 1.3418 5 0 3 12 71.07 7.31 1.3264 4 4 0 6 71.92 1.04 1.3128 3 5 0 6 73.56 12.39 1.2876 2 2 4 12 74.40 1.12 1.2751 1 3 4 12 74.45 1.86 1.2744 6 2 0 6 74.45 1.80 1.2744 2 6 0 6 75.06 4.15 1.2655 1 6 2 12 75.20 1.30 1.2634 1 5 3 12 75.20 2.89 1.2634 5 1 3 12 76.90 1.60 1.2398 4 0 4 12 80.16 1.32 1.1974 3 4 3 12 82.47 2.97 1.1696 2 6 2 12 82.47 5.88 1.1696 6 2 2 12 84.26 1.58 1.1492 5 0 4 12 86.52 1.71 1.1249 1 7 2 12 86.69 1.86 1.1232 4 2 4 12 87.42 1.18 1.1157 1 2 5 12 89.11 1.53 1.0988 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.