Tephroite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R100105 Francis C A, Ribbe P H American Mineralogist 65 (1980) 1263-1269 The forsterite-tephroite series: I. Crystal structure refinements Sample: Te 91 olivine Locality: Madagascar _database_code_amcsd 0000802 CELL PARAMETERS: 4.8890 10.6900 6.2710 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 0.772 Mg 0.00000 0.00000 0.00000 0.170 0.772 Mn 0.98770 0.28010 0.25000 1.000 0.658 Si 0.42650 0.09510 0.25000 1.000 0.621 O 0.75740 0.09140 0.25000 1.000 0.825 O 0.21620 0.45250 0.25000 1.000 0.689 O 0.28750 0.16250 0.04010 1.000 0.785 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: 17.05866794 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 16.59 6.69 5.3450 0 2 0 19.97 4.13 4.4461 1 1 0 21.85 11.93 4.0679 0 2 1 23.07 6.89 3.8557 1 0 1 24.54 64.27 3.6270 1 1 1 24.68 6.82 3.6075 1 2 0 28.47 10.10 3.1355 0 0 2 28.55 3.80 3.1270 1 2 1 31.06 89.99 2.8796 1 3 0 33.12 29.86 2.7045 0 2 2 33.53 9.00 2.6725 0 4 0 34.27 75.84 2.6169 1 3 1 35.02 100.00 2.5624 1 1 2 36.55 15.44 2.4585 0 4 1 36.77 12.82 2.4445 2 0 0 37.75 6.44 2.3830 2 1 0 38.02 14.39 2.3665 1 2 2 38.39 12.44 2.3450 1 4 0 40.50 6.87 2.2276 2 1 1 42.63 4.56 2.1209 1 3 2 43.18 2.21 2.0953 2 2 1 44.55 1.34 2.0339 0 4 2 46.35 2.28 1.9589 1 5 0 48.10 11.62 1.8917 1 1 3 48.70 6.03 1.8698 1 5 1 50.31 72.29 1.8135 2 2 2 50.46 2.65 1.8086 1 2 3 50.61 22.49 1.8038 2 4 0 52.81 12.97 1.7335 2 4 1 53.46 13.25 1.7138 0 6 1 54.22 17.51 1.6916 1 3 3 55.30 16.01 1.6613 1 5 2 55.84 8.44 1.6465 0 4 3 57.18 4.06 1.6111 3 1 0 58.76 1.10 1.5714 2 1 3 58.91 21.77 1.5677 0 0 4 59.09 2.68 1.5635 2 4 2 59.22 6.89 1.5604 3 1 1 59.28 1.35 1.5588 3 2 0 59.28 2.38 1.5588 2 5 1 59.69 25.83 1.5491 0 6 2 61.27 1.08 1.5128 3 2 1 62.69 5.11 1.4820 3 3 0 63.86 13.42 1.4577 1 7 0 64.62 6.81 1.4423 3 3 1 65.09 8.49 1.4330 3 1 2 65.28 1.43 1.4294 1 5 3 66.65 2.94 1.4033 2 6 1 67.05 7.46 1.3958 3 2 2 67.29 1.90 1.3914 3 4 0 68.10 12.35 1.3769 1 3 4 68.74 2.37 1.3656 2 4 3 69.16 2.54 1.3583 3 4 1 69.30 4.58 1.3560 0 6 3 69.51 2.39 1.3522 0 4 4 71.49 5.10 1.3197 2 0 4 72.20 4.03 1.3085 2 6 2 74.34 1.64 1.2760 3 1 3 74.39 1.45 1.2752 2 5 3 77.68 1.20 1.2293 0 8 2 78.21 4.19 1.2222 4 0 0 79.23 3.42 1.2090 3 3 3 79.38 1.18 1.2071 1 1 5 80.12 7.67 1.1978 3 5 2 80.18 1.23 1.1971 2 7 2 80.58 1.08 1.1922 1 8 2 81.11 1.84 1.1858 2 6 3 81.31 6.62 1.1833 2 4 4 81.50 1.16 1.1810 3 6 1 82.22 2.12 1.1725 2 8 0 83.45 2.12 1.1583 3 4 3 83.96 2.04 1.1525 2 8 1 84.20 4.13 1.1499 1 3 5 85.81 1.87 1.1324 4 1 2 86.65 1.44 1.1236 3 1 4 87.55 4.49 1.1143 3 7 0 87.60 5.09 1.1138 4 2 2 87.83 2.32 1.1115 4 4 0 88.44 1.18 1.1054 3 2 4 89.17 1.15 1.0982 2 8 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.