Covellite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R060306 Evans H T, Konnert J A American Mineralogist 61 (1976) 996-1000 Crystal structure refinement of covellite CELL PARAMETERS: 3.7937 3.7937 16.3570 90.000 90.000 120.000 SPACE GROUP: P6_3/mmc ATOM X Y Z OCCUPANCY ISO(B) Cu 0.66667 0.33333 0.25000 1.000 15.601 Cu 0.33333 0.66667 0.10733 1.000 5.225 S 0.33333 0.66667 0.25000 1.000 4.301 S 0.00000 0.00000 0.06337 1.000 2.798 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 3 +/- 3 +/- 15 MAX. ABS. INTENSITY / VOLUME**2: 36.06776469 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.82 8.22 8.1785 0 0 2 21.73 3.49 4.0893 0 0 4 27.14 9.64 3.2854 1 0 0 27.69 36.03 3.2211 1 0 1 29.30 55.04 3.0486 1 0 2 31.80 100.00 2.8140 1 0 3 32.85 49.66 2.7262 0 0 6 35.04 2.08 2.5612 1 0 4 38.85 4.13 2.3182 1 0 5 43.12 1.42 2.0980 1 0 6 44.30 2.36 2.0446 0 0 8 47.76 20.35 1.9042 1 0 7 47.96 54.81 1.8968 1 1 0 52.73 20.73 1.7359 1 0 8 53.23 3.49 1.7207 1 1 4 56.28 4.35 1.6345 2 0 1 57.20 2.96 1.6106 2 0 2 58.70 5.10 1.5729 2 0 3 59.36 20.36 1.5570 1 1 6 63.54 2.79 1.4643 1 0 10 69.37 1.74 1.3547 1 0 11 70.01 3.73 1.3439 2 0 7 74.03 3.85 1.2806 2 0 8 77.01 2.13 1.2382 2 1 1 77.80 1.35 1.2277 2 1 2 79.09 1.38 1.2108 2 1 3 88.90 1.59 1.1008 1 0 14 89.34 2.12 1.0966 2 1 7 89.49 2.16 1.0951 3 0 0 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.