Tiemannite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R060463 Earley J W American Mineralogist 35 (1950) 337-364 Description and syntheses of the selenide minerals CELL PARAMETERS: 6.0900 6.0900 6.0900 90.000 90.000 90.000 SPACE GROUP: F-43m ATOM X Y Z OCCUPANCY ISO(B) Hg 0.00000 0.00000 0.00000 1.000 1.000 Se 0.25000 0.25000 0.25000 1.000 0.600 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 5 +/- 5 +/- 5 MAX. ABS. INTENSITY / VOLUME**2: 578.0390228 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 25.33 100.00 3.5161 1 1 1 29.33 15.59 3.0450 2 0 0 41.96 63.68 2.1531 2 2 0 49.65 44.82 1.8362 3 1 1 52.02 3.98 1.7580 2 2 2 60.84 9.76 1.5225 4 0 0 66.98 16.75 1.3971 3 3 1 68.96 4.64 1.3618 4 2 0 76.65 18.41 1.2431 4 2 2 82.26 8.81 1.1720 5 1 1 82.26 2.94 1.1720 3 3 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.