Luzonite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R070247 Marumo F, Nowacki W Zeitschrift fur Kristallographie 124 (1967) 1-8 A refinement of the crystal structure of luzonite, Cu3AsS4 Locality: Cerro de Pasco, Peru AMCSD#0010309 CELL PARAMETERS: 5.3193 5.3193 10.5430 90.000 90.000 90.000 SPACE GROUP: I-42m ATOM X Y Z OCCUPANCY ISO(B) Cu 0.00000 0.50000 0.25000 1.000 1.580 Cu 0.00000 0.00000 0.50000 1.000 1.580 As 0.00000 0.00000 0.00000 0.685 0.550 Sb 0.00000 0.00000 0.00000 0.315 0.550 S 0.24420 0.24420 0.12480 1.000 1.000 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 4 +/- 9 MAX. ABS. INTENSITY / VOLUME**2: 134.1659722 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 18.68 2.06 4.7491 1 0 1 29.17 100.00 3.0618 1 1 2 33.70 8.46 2.6597 2 0 0 34.01 4.11 2.6358 0 0 4 48.40 17.93 1.8807 2 2 0 48.63 35.32 1.8721 2 0 4 57.51 22.60 1.6025 3 1 2 57.93 11.03 1.5920 1 1 6 60.47 2.60 1.5309 2 2 4 70.86 4.53 1.3298 4 0 0 71.60 2.20 1.3179 0 0 8 78.40 3.65 1.2197 3 3 2 78.76 7.20 1.2151 3 1 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.