Arisite-(La) Piilonen P C, McDonald A M, Grice J D, Cooper M A, Kolitsch U, Rowe R, Gault R A, Poirier G Mineralogical Magazine 74 (2010) 257-268 Arisite-(La), a new REE-fluorcarbonate mineral from the Aris phonolite (Namibia), with descriptions of the crystal structures of arisite-(La) and arisite-(Ce) Locality: Aris, Namibia Note: x-coordinate of O1 adjusted to special position _database_code_amcsd 0014599 CELL PARAMETERS: 5.1131 5.1131 8.6759 90.000 90.000 120.000 SPACE GROUP: P-6m2 X-RAY WAVELENGTH: 1.541838 Cell Volume: 196.433 Density (g/cm3): 4.050 MAX. ABS. INTENSITY / VOLUME**2: 65.41045679 RIR: 5.259 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.05 100.00 4.4281 1 0 0 3 20.47 42.75 4.3380 0 0 2 2 22.54 7.62 3.9441 1 0 1 6 28.81 78.87 3.0988 1 0 2 6 35.10 40.81 2.5566 1 1 0 6 37.13 21.18 2.4213 1 0 3 6 40.75 32.66 2.2140 2 0 0 3 40.98 26.75 2.2025 1 1 2 12 41.64 10.85 2.1690 0 0 4 2 42.12 1.26 2.1453 2 0 1 6 46.02 45.53 1.9720 2 0 2 6 46.63 18.39 1.9479 1 0 4 6 47.47 11.01 1.9154 1 1 3 12 52.02 3.04 1.7580 2 0 3 6 54.85 14.54 1.6737 2 1 0 6 55.56 13.69 1.6539 1 1 4 12 55.95 1.57 1.6434 2 1 1 12 57.00 9.73 1.6156 1 0 5 6 59.17 16.92 1.5615 2 1 2 12 59.68 8.59 1.5494 2 0 4 6 62.97 6.05 1.4760 3 0 0 3 64.31 5.06 1.4486 2 1 3 12 64.95 2.84 1.4357 1 1 5 12 66.97 5.65 1.3973 3 0 2 6 68.23 3.39 1.3746 1 0 6 6 68.73 1.34 1.3657 2 0 5 6 71.16 9.72 1.3250 2 1 4 12 71.80 2.75 1.3147 3 0 3 6 74.18 6.85 1.2783 2 2 0 6 75.54 1.47 1.2586 1 1 6 12 77.76 4.54 1.2281 3 1 0 6 77.91 4.52 1.2261 2 2 2 12 78.36 4.19 1.2203 3 0 4 6 79.10 1.77 1.2107 2 0 6 6 79.58 6.62 1.2046 2 1 5 12 80.47 4.39 1.1935 1 0 7 6 81.44 7.67 1.1817 3 1 2 12 86.00 2.06 1.1304 3 1 3 12 86.58 1.34 1.1243 3 0 5 6 87.46 3.93 1.1153 1 1 7 12 88.28 2.24 1.1070 4 0 0 3 88.86 4.33 1.1013 2 2 4 12 89.59 2.81 1.0942 2 1 6 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.