Ribbeite Freed R L, Rouse R C, Peacor D R American Mineralogist 78 (1993) 190-194 Ribbeite, a second example of edge-sharing silicate tetrahedra in the leucophoenicite group _database_code_amcsd 0001545 CELL PARAMETERS: 10.7320 15.6720 4.8110 90.000 90.000 90.000 SPACE GROUP: Pnma X-RAY WAVELENGTH: 1.541838 Cell Volume: 809.171 Density (g/cm3): 4.045 MAX. ABS. INTENSITY / VOLUME**2: 12.05867895 RIR: 0.971 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 16.52 1.10 5.3660 2 0 0 2 17.47 3.68 5.0767 2 1 0 4 20.06 9.00 4.4274 2 2 0 4 20.23 23.10 4.3901 1 0 1 4 21.02 9.15 4.2273 1 1 1 8 22.70 1.25 3.9180 0 4 0 2 23.22 37.23 3.8300 1 2 1 8 25.16 6.74 3.5389 0 3 1 4 25.51 6.70 3.4920 2 1 1 8 26.52 25.44 3.3609 1 3 1 8 27.38 3.77 3.2578 2 2 1 8 30.58 82.60 2.9231 1 4 1 8 31.16 91.58 2.8707 3 0 1 4 31.69 57.40 2.8237 3 1 1 8 33.10 47.80 2.7065 2 5 0 4 33.24 27.14 2.6955 3 2 1 8 33.40 19.09 2.6830 4 0 0 2 33.90 2.94 2.6445 4 1 0 4 34.33 5.25 2.6120 0 6 0 2 35.18 90.59 2.5509 1 5 1 8 35.69 31.60 2.5159 3 3 1 8 37.38 16.86 2.4055 0 0 2 2 37.69 12.66 2.3866 4 3 0 4 38.15 26.28 2.3589 2 5 1 8 38.42 16.48 2.3432 4 0 1 4 38.89 21.50 2.3156 3 4 1 8 40.10 6.17 2.2485 1 2 2 8 40.17 8.88 2.2447 1 6 1 8 40.76 4.95 2.2137 4 4 0 4 42.71 7.12 2.1170 3 5 1 8 42.78 1.84 2.1137 2 2 2 8 42.85 1.05 2.1105 2 6 1 8 45.02 1.10 2.0136 1 4 2 8 45.48 3.63 1.9945 1 7 1 8 46.32 1.94 1.9602 5 0 1 4 46.70 2.40 1.9450 5 1 1 8 47.48 1.66 1.9150 2 4 2 8 47.83 3.18 1.9016 5 2 1 8 49.68 2.57 1.8352 5 3 1 8 50.78 100.00 1.7980 2 5 2 8 50.99 38.65 1.7910 4 0 2 4 51.05 4.59 1.7890 1 8 1 8 51.35 2.65 1.7795 4 1 2 8 51.66 3.04 1.7695 0 6 2 4 51.78 9.42 1.7654 3 7 1 8 52.18 6.19 1.7530 5 4 1 8 52.47 11.16 1.7438 6 2 0 4 53.29 6.48 1.7190 4 7 0 4 53.30 1.42 1.7188 2 8 1 8 54.13 10.95 1.6942 4 3 2 8 55.27 19.65 1.6619 5 5 1 8 55.48 6.77 1.6563 2 9 0 4 56.49 5.24 1.6289 4 4 2 8 56.56 4.19 1.6271 6 4 0 4 56.88 6.89 1.6186 1 9 1 8 56.90 4.98 1.6181 3 8 1 8 58.16 4.41 1.5861 1 0 3 4 58.49 3.19 1.5780 1 1 3 8 58.91 1.87 1.5678 5 6 1 8 58.93 25.24 1.5672 0 10 0 2 59.46 3.57 1.5545 1 2 3 8 59.50 37.27 1.5535 6 5 0 4 61.06 2.11 1.5177 1 3 3 8 62.37 9.81 1.4888 3 9 1 8 63.25 4.73 1.4702 1 4 3 8 63.58 5.14 1.4634 3 0 3 4 63.71 15.68 1.4608 7 0 1 4 63.71 2.12 1.4607 4 9 0 4 63.89 3.73 1.4570 3 1 3 8 64.02 2.95 1.4545 7 1 1 8 64.81 2.06 1.4385 3 2 3 8 66.01 7.61 1.4152 1 5 3 8 66.19 2.00 1.4119 6 2 2 8 66.34 2.71 1.4091 3 3 3 8 66.90 1.72 1.3986 4 7 2 8 67.94 7.96 1.3797 2 5 3 8 68.12 3.15 1.3765 4 0 3 4 68.17 8.49 1.3756 3 10 1 8 68.44 1.78 1.3709 3 4 3 8 68.82 1.71 1.3642 2 9 2 8 69.46 2.84 1.3532 4 10 0 4 69.78 1.19 1.3478 6 4 2 8 70.78 1.10 1.3311 4 3 3 8 71.41 3.20 1.3209 6 8 0 4 71.90 4.44 1.3131 0 10 2 4 72.42 5.11 1.3050 6 5 2 8 72.57 1.07 1.3027 4 10 1 8 72.62 5.12 1.3018 5 9 1 8 74.32 1.54 1.2762 3 11 1 8 74.41 1.52 1.2749 7 6 1 8 74.81 1.54 1.2692 8 4 0 4 78.01 1.71 1.2249 3 7 3 8 78.32 1.82 1.2207 5 4 3 8 79.73 5.63 1.2027 0 0 4 2 80.34 1.04 1.1951 2 11 2 8 80.86 7.79 1.1887 5 5 3 8 81.55 1.04 1.1804 6 2 3 8 81.63 8.57 1.1794 4 10 2 8 82.21 1.40 1.1726 4 7 3 8 82.21 2.78 1.1726 1 9 3 8 82.29 3.38 1.1716 8 0 2 4 83.49 1.64 1.1578 6 8 2 8 84.81 1.95 1.1432 8 3 2 8 86.97 3.06 1.1203 3 9 3 8 87.08 1.29 1.1191 7 9 1 8 87.50 1.25 1.1148 1 10 3 8 87.83 1.07 1.1115 3 13 1 8 87.98 1.08 1.1100 9 4 1 8 88.16 4.46 1.1082 7 0 3 4 88.22 1.41 1.1076 6 9 2 8 89.08 6.10 1.0991 2 5 4 8 89.24 2.89 1.0975 4 0 4 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.