Aegirine Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R040054 Redhammer G J, Amthauer G, Lottermoser W, Treutmann W European Journal of Mineralogy 12 (2000) 105-120 Synthesis and structural properties of clinopyroxenes of the hedenbergite CaFeSi2O6 - aegirine NaFeSi2O6 solid-solution series Sample: ae90/13 CELL PARAMETERS: 9.6570 8.8002 5.3020 90.000 107.290 90.000 SPACE GROUP: C2/c ATOM X Y Z OCCUPANCY ISO(B) Na 0.00000 0.29940 0.25000 0.900 0.660 Ca 0.00000 0.29940 0.25000 0.100 0.660 Fe 0.00000 0.89920 0.25000 1.000 0.440 Si 0.28980 0.08930 0.23380 1.000 0.390 O 0.11640 0.07880 0.13780 1.000 0.580 O 0.36030 0.25500 0.30780 1.000 0.770 O 0.34980 0.01220 0.01170 1.000 0.650 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 8 +/- 8 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 18.31352252 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 13.91 38.48 6.3661 1 1 0 19.25 3.44 4.6103 2 0 0 20.04 19.47 4.4298 -1 1 1 20.18 15.63 4.4001 0 2 0 24.61 7.62 3.6172 1 1 1 28.03 6.01 3.1831 2 2 0 29.94 100.00 2.9847 -2 2 1 30.81 44.77 2.9017 3 1 0 30.92 5.36 2.8917 -3 1 1 32.02 1.32 2.7954 1 3 0 35.25 27.59 2.5461 -1 3 1 35.37 1.28 2.5377 -1 1 2 35.46 38.19 2.5312 0 0 2 36.29 40.51 2.4755 2 2 1 39.08 1.25 2.3052 4 0 0 39.91 2.64 2.2588 3 1 1 40.17 1.29 2.2448 -3 1 2 40.99 17.46 2.2021 1 1 2 41.14 2.41 2.1941 0 2 2 42.60 1.71 2.1220 3 3 0 42.69 18.96 2.1181 -3 3 1 43.19 11.67 2.0946 -4 2 1 44.61 10.32 2.0311 -4 0 2 44.92 7.20 2.0177 0 4 1 45.69 1.12 1.9856 2 4 0 45.73 6.08 1.9839 2 0 2 46.97 5.15 1.9346 -2 4 1 48.36 2.96 1.8821 -5 1 1 49.42 1.63 1.8441 -4 2 2 49.89 3.50 1.8279 3 3 1 50.11 1.35 1.8205 -3 3 2 50.57 1.15 1.8049 5 1 0 51.55 1.93 1.7729 2 4 1 52.56 2.80 1.7413 4 2 1 52.96 11.42 1.7288 1 5 0 54.37 3.40 1.6873 3 1 2 54.72 1.20 1.6776 -3 1 3 55.33 6.77 1.6605 0 4 2 56.21 15.73 1.6363 -2 2 3 57.20 14.59 1.6104 -5 3 1 57.94 7.57 1.5915 4 4 0 59.13 1.07 1.5624 5 1 1 60.22 4.17 1.5368 6 0 0 60.47 4.93 1.5309 -6 0 2 60.63 5.61 1.5273 3 5 0 61.33 2.79 1.5115 -6 2 1 61.37 1.44 1.5106 -4 2 3 61.58 11.68 1.5059 -1 3 3 61.99 5.17 1.4971 4 0 2 62.21 1.21 1.4924 -4 4 2 62.95 1.62 1.4766 -3 3 3 63.42 4.77 1.4667 0 6 0 63.59 1.60 1.4631 -5 1 3 65.90 2.12 1.4173 4 2 2 66.69 9.78 1.4026 -3 5 2 67.03 14.81 1.3962 5 3 1 67.26 2.84 1.3919 1 5 2 68.01 5.08 1.3785 2 2 3 68.17 2.59 1.3757 -2 4 3 70.97 7.18 1.3280 -7 1 2 71.22 3.78 1.3240 -5 3 3 72.57 2.22 1.3027 7 1 0 72.64 5.29 1.3016 -3 1 4 72.66 3.44 1.3013 6 2 1 73.95 1.98 1.2817 -4 0 4 74.54 1.20 1.2730 -2 6 2 74.81 6.88 1.2690 0 6 2 75.05 3.41 1.2656 0 0 4 77.05 1.50 1.2377 4 4 2 77.64 6.66 1.2298 3 5 2 78.30 1.93 1.2210 -1 7 1 80.07 2.65 1.1985 1 7 1 83.19 1.41 1.1613 -8 2 1 83.23 3.18 1.1608 -6 0 4 83.96 1.25 1.1526 8 0 0 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.