Pyromorphite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R050027 Dai Y S, Hughes J M The Canadian Mineralogist 27 (1989) 189-192 Crystal-structure refinements of vanadinite and pyromorphite CELL PARAMETERS: 9.9909 9.9909 7.3416 90.000 90.000 120.000 SPACE GROUP: P6_3/m ATOM X Y Z OCCUPANCY ISO(B) Pb 0.33333 0.66667 0.00480 1.000 0.675 Pb 0.25429 0.00536 0.25000 1.000 0.846 P 0.41040 0.37870 0.25000 1.000 0.376 O 0.34300 0.49000 0.25000 1.000 0.253 O 0.59000 0.47500 0.25000 1.000 0.174 O 0.35900 0.27400 0.08400 1.000 0.363 Cl 0.00000 0.00000 0.00000 1.000 0.300 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 7 +/- 7 +/- 6 MAX. ABS. INTENSITY / VOLUME**2: 169.4348994 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 17.76 9.53 4.9955 1 1 0 20.53 28.29 4.3262 2 0 0 21.52 44.40 4.1300 1 1 1 23.87 1.96 3.7272 2 0 1 24.25 6.66 3.6708 0 0 2 26.37 30.00 3.3793 1 0 2 27.27 15.87 3.2703 1 2 0 27.27 19.73 3.2703 2 1 0 29.91 41.14 2.9873 1 2 1 29.91 50.41 2.9873 2 1 1 30.21 100.00 2.9580 1 1 2 31.01 53.72 2.8841 3 0 0 35.96 2.73 2.4977 2 2 0 36.81 1.19 2.4418 1 2 2 39.75 6.02 2.2679 3 0 2 41.07 15.55 2.1977 1 1 3 41.76 6.14 2.1631 4 0 0 43.84 37.40 2.0650 2 2 2 45.14 8.36 2.0086 1 3 2 45.14 12.00 2.0086 3 1 2 45.71 7.13 1.9850 2 3 0 45.71 2.60 1.9850 3 2 0 46.34 15.10 1.9593 1 2 3 46.34 12.08 1.9593 2 1 3 47.45 13.88 1.9162 2 3 1 47.45 9.61 1.9162 3 2 1 48.20 9.72 1.8881 1 4 0 48.20 14.84 1.8881 4 1 0 48.87 31.16 1.8636 4 0 2 49.67 12.67 1.8354 0 0 4 53.16 2.09 1.7228 1 1 4 54.29 3.62 1.6896 2 0 4 54.66 2.98 1.6790 1 4 2 54.66 1.68 1.6790 4 1 2 55.16 1.19 1.6652 3 3 0 56.26 3.58 1.6351 2 4 0 56.26 2.13 1.6351 4 2 0 56.68 5.81 1.6239 3 3 1 57.59 6.13 1.6006 1 2 4 57.59 3.76 1.6006 2 1 4 59.01 5.30 1.5653 5 0 2 59.48 1.54 1.5540 1 5 0 59.48 2.56 1.5540 5 1 0 59.72 12.96 1.5484 3 0 4 60.01 3.37 1.5416 2 3 3 60.01 5.85 1.5416 3 2 3 60.94 4.21 1.5203 1 5 1 60.94 6.30 1.5203 5 1 1 61.11 10.74 1.5164 3 3 2 62.83 1.08 1.4790 2 2 4 66.36 2.12 1.4087 1 1 5 66.85 3.26 1.3995 4 0 4 67.62 1.09 1.3855 2 5 0 68.11 2.59 1.3767 3 3 3 68.98 1.91 1.3615 2 5 1 68.98 3.47 1.3615 5 2 1 69.79 1.25 1.3476 3 2 4 69.79 2.87 1.3476 2 3 4 70.11 7.28 1.3422 6 0 2 70.27 2.55 1.3395 1 2 5 70.27 4.51 1.3395 2 1 5 71.08 4.51 1.3263 3 4 2 71.08 1.49 1.3263 4 3 2 71.50 1.42 1.3195 1 6 0 71.50 1.18 1.3195 6 1 0 71.72 6.35 1.3161 1 4 4 71.72 7.71 1.3161 4 1 4 71.98 2.79 1.3119 1 5 3 71.98 2.81 1.3119 5 1 3 72.83 2.61 1.2987 1 6 1 72.83 1.63 1.2987 6 1 1 72.99 6.90 1.2962 2 5 2 72.99 5.84 1.2962 5 2 2 76.24 2.33 1.2489 4 4 0 78.31 2.42 1.2209 2 4 4 78.31 2.61 1.2209 4 2 4 79.03 1.35 1.2115 1 0 6 79.50 1.22 1.2057 2 5 3 79.50 2.60 1.2057 5 2 3 80.88 5.97 1.1885 1 1 6 81.09 1.55 1.1860 1 5 4 81.09 2.27 1.1860 5 1 4 81.55 1.34 1.1805 3 2 5 81.55 2.96 1.1805 2 3 5 82.31 1.05 1.1714 3 5 2 82.31 1.95 1.1714 7 0 2 83.18 1.38 1.1614 1 6 3 83.18 1.03 1.1614 6 1 3 88.85 1.48 1.1013 3 3 5 89.11 4.26 1.0988 2 2 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.