Strontianite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050476 de Villiers J P R American Mineralogist 56 (1971) 758-767 Crystal structures of aragonite, strontianite, and witherite CELL PARAMETERS: 5.090000 8.358000 5.997000 90.00000 90.00000 90.00000 SPACE GROUP: Pmcn X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 20.44 4.45 4.3419 1 1 0 21.24 1.86 4.1812 0 2 0 25.33 100.00 3.5147 1 1 1 25.98 52.61 3.4279 0 2 1 29.83 12.16 2.9932 0 0 2 31.46 1.98 2.8415 1 2 1 31.73 9.90 2.8181 0 1 2 34.76 6.54 2.5789 1 0 2 35.31 15.73 2.5401 2 0 0 35.50 2.54 2.5270 0 3 1 36.43 24.35 2.4643 1 1 2 36.75 27.55 2.4438 1 3 0 36.91 12.08 2.4338 0 2 2 40.01 2.14 2.2520 2 1 1 41.57 9.72 2.1709 2 2 0 43.25 2.94 2.0906 0 4 0 44.36 40.91 2.0409 2 2 1 45.95 18.39 1.9737 0 4 1 46.88 15.94 1.9367 2 0 2 48.03 27.33 1.8930 1 3 2 50.29 22.27 1.8131 1 1 3 50.65 10.49 1.8009 0 2 3 50.94 1.69 1.7915 2 3 1 52.00 3.65 1.7574 2 2 2 53.42 2.43 1.7139 0 4 2 55.31 2.01 1.6597 3 1 0 57.01 1.77 1.6142 2 4 0 57.59 8.70 1.5994 3 1 1 58.01 1.01 1.5886 1 5 0 59.24 8.28 1.5585 2 4 1 60.23 8.18 1.5355 1 5 1 61.96 1.40 1.4966 0 0 4 63.06 1.08 1.4732 0 1 4 63.25 3.14 1.4691 2 2 3 64.11 2.70 1.4515 3 1 2 64.32 4.34 1.4473 3 3 0 64.51 1.23 1.4435 0 4 3 65.67 2.88 1.4208 2 4 2 65.97 3.80 1.4149 1 1 4 66.28 1.64 1.4090 0 2 4 66.59 2.59 1.4032 1 5 2 67.11 2.23 1.3937 0 6 0 72.49 7.62 1.3030 3 3 2 73.37 3.28 1.2894 2 0 4 74.27 7.11 1.2760 3 1 3 74.25 7.03 1.2763 1 3 4 74.68 3.24 1.2701 4 0 0 75.13 3.36 1.2635 0 6 2 75.73 6.46 1.2550 2 4 3 76.60 6.09 1.2429 1 5 3 77.39 1.02 1.2322 2 2 4 78.17 5.61 1.2219 2 6 0 80.60 4.02 1.1910 4 2 1 82.43 1.72 1.1692 4 0 2 82.60 3.89 1.1671 3 5 1 83.74 3.36 1.1542 1 1 5 84.02 1.47 1.1510 0 2 5 84.88 2.88 1.1416 1 7 1 85.83 3.10 1.1313 2 6 2 86.34 1.44 1.1260 4 2 2 87.75 1.20 1.1115 3 1 4 88.32 1.37 1.1058 3 5 2 89.16 1.12 1.0975 2 4 4 89.16 1.12 1.0975 2 4 4 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.