Matlockite Bannister F A, Hey M H Mineralogical Magazine 23 (1934) 587-597 The crystal-structure and optical properties of matlockite (PbFCl) Locality: Matlock, Derbyshire, England _database_code_amcsd 0014434 CELL PARAMETERS: 4.0900 4.0900 7.2100 90.000 90.000 90.000 SPACE GROUP: P4/nmm X-RAY WAVELENGTH: 1.541838 Cell Volume: 120.610 Density (g/cm3): 7.204 MAX. ABS. INTENSITY / VOLUME**2: 301.2291846 RIR: 13.616 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.28 12.37 7.2100 0 0 1 2 24.70 26.18 3.6050 0 0 2 2 25.03 100.00 3.5575 1 0 1 8 30.92 50.78 2.8921 1 1 0 4 33.12 32.72 2.7044 1 0 2 8 37.42 2.55 2.4033 0 0 3 2 39.97 42.91 2.2559 1 1 2 8 43.68 18.14 2.0721 1 0 3 8 44.29 24.25 2.0450 2 0 0 4 46.14 1.73 1.9674 2 0 1 8 49.30 8.97 1.8484 1 1 3 8 51.37 12.88 1.7787 2 0 2 8 51.55 25.87 1.7729 2 1 1 16 55.73 13.33 1.6494 1 0 4 8 56.41 11.86 1.6312 2 1 2 16 59.34 2.60 1.5575 2 0 3 8 63.96 9.99 1.4555 2 1 3 16 64.43 6.62 1.4460 2 2 0 4 64.64 2.34 1.4420 0 0 5 2 69.06 1.13 1.3600 1 0 5 8 69.52 1.27 1.3522 2 0 4 8 70.12 4.47 1.3421 2 2 2 8 70.27 4.42 1.3396 3 0 1 8 73.18 6.48 1.2934 3 1 0 8 73.37 4.35 1.2905 1 1 5 8 73.81 9.94 1.2839 2 1 4 16 74.39 2.24 1.2752 3 0 2 8 76.95 1.08 1.2390 2 2 3 8 78.58 8.43 1.2174 3 1 2 16 81.10 2.21 1.1858 3 0 3 8 81.71 4.13 1.1785 2 0 5 8 83.93 2.87 1.1529 1 0 6 8 85.20 2.64 1.1389 3 1 3 16 85.81 1.12 1.1324 2 1 5 16 86.94 4.39 1.1206 3 2 1 16 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.