Hedenbergite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R070136 Cameron M, Sueno S, Prewitt C T, Papike J J American Mineralogist 58 (1973) 594-618 High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite, spodumene, and ureyite T = 24 C pyroxene CELL PARAMETERS: 9.838923 9.022443 5.249182 90.00000 104.8156 90.00000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 13.51 23.44 6.5460 1 1 0 18.64 11.14 4.7559 2 0 0 19.66 6.00 4.5112 0 2 0 20.14 1.98 4.4034 -1 1 1 27.22 9.08 3.2730 2 2 0 29.73 100.00 3.0016 -2 2 1 29.84 38.64 2.9913 3 1 0 30.79 10.66 2.9012 -3 1 1 34.69 34.35 2.5833 -1 3 1 35.11 48.38 2.5535 2 2 1 35.34 42.14 2.5373 0 0 2 35.59 2.30 2.5200 -1 1 2 37.80 2.89 2.3780 4 0 0 38.41 4.79 2.3416 3 1 1 40.28 13.38 2.2369 1 1 2 40.66 1.05 2.2167 -3 1 2 40.76 2.49 2.2115 0 2 2 41.34 4.59 2.1820 3 3 0 42.06 23.39 2.1463 -3 3 1 42.60 13.94 2.1203 -4 2 1 43.88 5.26 2.0612 0 4 1 44.52 10.05 2.0331 2 0 2 45.05 12.92 2.0104 -4 0 2 45.85 3.52 1.9774 -1 3 2 46.10 1.93 1.9672 -2 4 1 47.60 1.04 1.9088 -5 1 1 48.16 5.67 1.8876 3 3 1 48.88 1.00 1.8614 5 1 0 49.11 1.04 1.8536 2 2 2 49.74 1.57 1.8315 1 3 2 49.97 2.24 1.8234 2 4 1 50.54 4.08 1.8042 4 2 1 51.50 15.91 1.7729 1 5 0 52.58 1.99 1.7390 3 1 2 53.91 1.27 1.6991 -1 5 1 54.37 5.88 1.6858 0 4 2 55.54 1.70 1.6532 -3 1 3 56.10 14.60 1.6379 -5 3 1 56.15 5.10 1.6365 4 4 0 56.63 17.09 1.6238 -2 2 3 58.14 5.10 1.5853 6 0 0 58.83 6.06 1.5683 3 5 0 59.65 6.01 1.5487 4 0 2 60.07 3.38 1.5388 -6 2 1 60.37 5.49 1.5320 -6 0 2 61.40 12.31 1.5087 -1 3 3 61.62 5.00 1.5037 0 6 0 62.09 1.73 1.4935 -4 2 3 62.40 1.21 1.4869 -1 5 2 63.30 1.88 1.4678 -3 3 3 63.45 1.19 1.4648 4 2 2 64.40 17.78 1.4454 5 3 1 65.60 5.70 1.4218 1 5 2 65.88 8.57 1.4166 -3 5 2 66.21 1.11 1.4102 1 3 3 66.48 4.68 1.4052 2 2 3 67.97 1.72 1.3779 -2 4 3 69.63 4.19 1.3491 6 2 1 69.95 2.05 1.3437 7 1 0 70.46 6.20 1.3353 -7 1 2 71.65 4.15 1.3160 -5 3 3 73.08 6.32 1.2936 0 6 2 73.68 3.47 1.2847 -3 1 4 74.21 1.08 1.2767 4 4 2 74.76 3.47 1.2687 0 0 4 75.06 7.21 1.2644 3 5 2 75.28 1.99 1.2613 -4 0 4 76.16 1.56 1.2488 -1 7 1 77.64 2.43 1.2287 1 7 1 80.76 1.93 1.1890 8 0 0 80.98 1.29 1.1863 -8 2 1 84.70 2.87 1.1434 -6 0 4 84.70 2.87 1.1434 -6 0 4 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.