Tungstenite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern Schutte W J, de Boer J L, Jellinek F Journal of Solid State Chemistry 70 (1987) 207-209 Crystal structures of tungsten disulfide and diselenide Sample: 3R polytype CELL PARAMETERS: 3.160655 3.160655 18.44779 90.00000 90.00000 120.0000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 MAX. ABS. INTENSITY / VOLUME**2: 430.5207994 2-THETA INTENSITY D-SPACING H K L 14.38 100.00 6.1493 0 0 3 29.00 7.58 3.0746 0 0 6 33.04 31.73 2.7076 1 0 1 34.12 31.97 2.6241 0 1 2 38.19 33.38 2.3539 1 0 4 41.01 30.59 2.1983 0 1 5 44.13 6.28 2.0498 0 0 9 47.86 19.15 1.8985 1 0 7 51.78 12.51 1.7636 0 1 8 58.33 12.80 1.5803 1 1 0 60.12 3.88 1.5373 0 0 12 60.45 5.43 1.5298 1 0 10 60.41 12.81 1.5306 1 1 3 65.17 4.23 1.4300 0 1 11 66.45 4.40 1.4055 1 1 6 68.70 3.38 1.3649 0 2 1 69.34 3.58 1.3538 2 0 2 71.88 4.40 1.3121 0 2 4 73.77 4.53 1.2832 2 0 5 75.37 2.44 1.2598 1 0 13 75.95 6.44 1.2515 1 1 9 78.70 3.73 1.2146 0 2 7 80.88 2.32 1.1873 0 1 14 81.74 2.82 1.1769 2 0 8 88.68 6.90 1.1019 1 1 12 88.97 1.64 1.0992 0 2 10 88.97 1.64 1.0992 0 2 10 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.