Tephroite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R060141 Francis C A, Ribbe P H American Mineralogist 65 (1980) 1263-1269 The forsterite-tephroite series: I. Crystal structure refinements Te 91 olivine CELL PARAMETERS: 4.8620 10.5710 6.2140 90.000 90.000 90.000 SPACE GROUP: Pbnm ATOM X Y Z OCCUPANCY ISO(B) Mn 0.00000 0.00000 0.00000 0.830 0.758 Mg 0.00000 0.00000 0.00000 0.170 0.758 Mn 0.98770 0.28010 0.25000 1.000 0.647 Si 0.42650 0.09510 0.25000 1.000 0.610 O 0.75740 0.09140 0.25000 1.000 0.809 O 0.21620 0.45250 0.25000 1.000 0.677 O 0.28750 0.16250 0.04010 1.000 0.772 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 9 +/- 5 MAX. ABS. INTENSITY / VOLUME**2: 17.53134549 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 16.77 6.67 5.2855 0 2 0 20.10 4.17 4.4172 1 1 0 22.08 11.87 4.0261 0 2 1 23.23 6.92 3.8292 1 0 1 24.73 64.63 3.6003 1 1 1 24.88 6.83 3.5783 1 2 0 28.73 10.08 3.1070 0 0 2 28.79 3.80 3.1009 1 2 1 31.35 89.81 2.8532 1 3 0 33.45 29.84 2.6785 0 2 2 33.92 8.95 2.6428 0 4 0 34.59 75.64 2.5929 1 3 1 35.32 100.00 2.5413 1 1 2 36.96 15.33 2.4320 0 4 1 36.98 12.96 2.4310 2 0 0 37.98 6.47 2.3692 2 1 0 38.37 14.26 2.3460 1 2 2 38.78 12.29 2.3219 1 4 0 40.76 6.90 2.2137 2 1 1 43.04 4.53 2.1015 1 3 2 43.49 2.21 2.0811 2 2 1 45.03 1.33 2.0130 0 4 2 46.86 2.27 1.9388 1 5 0 48.54 11.54 1.8754 1 1 3 49.23 5.96 1.8508 1 5 1 50.71 72.12 1.8001 2 2 2 50.94 2.62 1.7927 1 2 3 51.05 22.38 1.7892 2 4 0 53.28 12.90 1.7193 2 4 1 54.11 13.02 1.6950 0 6 1 54.76 17.39 1.6762 1 3 3 55.90 15.80 1.6448 1 5 2 56.44 8.33 1.6303 0 4 3 57.53 4.07 1.6019 3 1 0 59.26 1.09 1.5594 2 1 3 59.50 21.54 1.5535 0 0 4 59.60 6.91 1.5512 3 1 1 59.63 2.66 1.5505 2 4 2 59.67 1.36 1.5495 3 2 0 59.86 2.37 1.5452 2 5 1 60.40 25.38 1.5326 0 6 2 61.70 1.08 1.5034 3 2 1 63.15 5.12 1.4724 3 3 0 64.63 13.21 1.4422 1 7 0 65.11 6.81 1.4327 3 3 1 65.56 8.50 1.4238 3 1 2 66.00 1.41 1.4155 1 5 3 67.35 2.92 1.3904 2 6 1 67.56 7.45 1.3866 3 2 2 67.84 1.89 1.3816 3 4 0 68.81 12.23 1.3644 1 3 4 69.41 2.36 1.3540 2 4 3 69.73 2.53 1.3486 3 4 1 70.12 4.51 1.3420 0 6 3 70.29 2.36 1.3392 0 4 4 72.16 5.09 1.3090 2 0 4 72.97 4.01 1.2965 2 6 2 74.94 1.64 1.2672 3 1 3 75.17 1.44 1.2639 2 5 3 78.69 1.18 1.2160 0 8 2 78.73 4.22 1.2155 4 0 0 79.94 3.41 1.2001 3 3 3 80.24 1.17 1.1963 1 1 5 80.89 7.65 1.1884 3 5 2 81.11 1.22 1.1857 2 7 2 81.61 1.06 1.1796 1 8 2 82.02 1.83 1.1749 2 6 3 82.17 6.58 1.1730 2 4 4 82.31 1.16 1.1714 3 6 1 83.22 2.10 1.1610 2 8 0 84.25 2.12 1.1494 3 4 3 84.99 2.02 1.1412 2 8 1 85.16 4.12 1.1394 1 3 5 86.46 1.88 1.1255 4 1 2 87.46 1.45 1.1152 3 1 4 88.29 5.14 1.1069 4 2 2 88.50 4.49 1.1048 3 7 0 88.55 2.34 1.1043 4 4 0 89.29 1.19 1.0971 3 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.