Fluornatromicrolite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R060589 Andrade M B, Atencio D, Menezes L A D, Ellena J The Canadian Mineralogist 49 (2011) 615-621 The crystal structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Redondo mine, Coronel Murta, Minas Gerias, Brazil Locality: Morro Redondo mine, Coronel Murta, Minas Gerias, Brazil _database_code_amcsd 0018462 CELL PARAMETERS: 10.4340 10.4340 10.4340 90.000 90.000 90.000 ALTERNATE SETTING FOR SPACE GROUP: Fd3m ATOM X Y Z OCCUPANCY ISO(B) Na 0.50000 0.50000 0.50000 0.440 1.429 Ca 0.50000 0.50000 0.50000 0.440 1.429 Pb 0.50000 0.50000 0.50000 0.010 1.429 Ta 0.00000 0.00000 0.00000 0.850 0.995 Nb 0.00000 0.00000 0.00000 0.070 0.995 Si 0.00000 0.00000 0.00000 0.060 0.995 As 0.00000 0.00000 0.00000 0.020 0.995 O 0.06840 0.37500 0.37500 0.960 1.634 OH 0.06840 0.37500 0.37500 0.040 1.634 F 0.37500 0.37500 0.37500 0.730 1.026 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 9 +/- 9 +/- 9 MAX. ABS. INTENSITY / VOLUME**2: 199.2265141 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 14.70 75.03 6.0241 1 1 1 28.37 47.70 3.1460 3 1 1 29.66 100.00 3.0120 2 2 2 34.38 31.23 2.6085 4 0 0 37.57 8.94 2.3937 3 3 1 45.15 7.39 2.0080 5 1 1 45.15 7.62 2.0080 3 3 3 49.41 42.36 1.8445 4 4 0 51.84 14.11 1.7637 5 3 1 57.96 6.71 1.5912 5 3 3 58.69 37.91 1.5730 6 2 2 61.58 9.54 1.5060 4 4 4 63.69 3.35 1.4611 7 1 1 63.69 5.38 1.4611 5 5 1 69.16 7.87 1.3584 7 3 1 69.16 2.50 1.3584 5 5 3 72.47 5.40 1.3043 8 0 0 74.43 1.13 1.2747 7 3 3 79.56 3.56 1.2048 7 5 1 80.20 13.26 1.1969 6 6 2 82.73 11.25 1.1666 8 4 0 84.62 2.55 1.1453 7 5 3 84.62 1.59 1.1453 9 1 1 89.63 3.28 1.0938 9 3 1 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.