Tangeite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R070489 Basso R, Palenzona A, Zefiro L Neues Jahrbuch fur Mineralogie, Monatshefte 1989 (1989) 300-308 Crystal structure refinement of a Sr-bearing term related to copper vanadates and arsenates of adelite and descloizite groups Locality: Molinello mine, Val Graveglia, Northern Appenines, Eastern Liguria, Italy CELL PARAMETERS: 5.7790 7.4150 9.3220 90.000 90.000 90.000 SPACE GROUP: P2_12_12_1 ATOM X Y Z OCCUPANCY ISO(B) Ca 0.98030 0.13140 0.82310 0.924 0.890 Pb 0.98030 0.13140 0.82310 0.076 0.890 Cu 0.25030 0.24600 0.50050 1.000 0.660 V 0.48740 0.88400 0.66730 0.590 0.570 As 0.48740 0.88400 0.66730 0.410 0.570 O 0.50370 0.06400 0.55020 1.000 1.070 O 0.43230 0.71050 0.55860 1.000 1.430 O 0.73830 0.86230 0.75830 1.000 1.170 O 0.25840 0.89670 0.77780 1.000 1.240 O 0.99670 0.10870 0.56820 1.000 0.850 H 0.01200 0.00600 0.49900 1.000 1.000 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 5 +/- 6 +/- 8 MAX. ABS. INTENSITY / VOLUME**2: 24.07855762 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 15.27 32.41 5.8031 0 1 1 18.06 2.41 4.9117 1 0 1 21.70 35.27 4.0948 1 1 1 22.53 5.39 3.9461 0 1 2 24.00 19.18 3.7075 0 2 0 25.86 4.84 3.4450 0 2 1 27.37 4.59 3.2589 1 1 2 28.61 82.20 3.1205 1 2 0 30.20 1.37 2.9591 1 2 1 30.82 24.61 2.9015 0 2 2 30.95 8.35 2.8895 2 0 0 31.21 100.00 2.8659 0 1 3 32.72 1.49 2.7368 1 0 3 34.59 36.05 2.5930 1 2 2 34.68 79.20 2.5866 2 1 1 34.95 45.27 2.5675 1 1 3 36.59 14.60 2.4559 2 0 2 37.65 13.20 2.3891 0 3 1 37.78 7.36 2.3815 0 2 3 38.62 6.42 2.3313 2 1 2 38.63 4.56 2.3305 0 0 4 39.54 14.72 2.2791 2 2 0 40.58 1.72 2.2233 0 1 4 40.76 6.19 2.2139 2 2 1 40.87 1.90 2.2079 1 3 1 43.62 1.42 2.0750 1 1 4 44.24 20.67 2.0474 2 2 2 44.53 1.02 2.0348 2 1 3 46.00 7.27 1.9731 0 2 4 48.77 5.90 1.8672 1 2 4 49.15 3.51 1.8537 0 4 0 49.50 8.75 1.8412 2 3 1 49.70 17.13 1.8343 1 3 3 49.88 5.39 1.8282 3 1 1 50.30 20.54 1.8140 2 0 4 51.32 1.59 1.7803 3 0 2 53.07 6.08 1.7256 1 1 5 53.17 22.49 1.7225 0 4 2 53.62 10.50 1.7094 3 2 0 56.47 8.40 1.6294 2 2 4 57.32 43.46 1.6074 2 3 3 57.42 4.62 1.6049 3 2 2 57.66 8.42 1.5987 3 1 3 59.22 17.65 1.5603 2 4 0 59.50 6.27 1.5537 0 0 6 60.39 20.94 1.5328 2 1 5 62.39 7.61 1.4884 0 3 5 62.80 1.29 1.4796 2 4 2 63.52 5.84 1.4646 0 5 1 64.20 4.48 1.4508 0 4 4 64.50 12.23 1.4447 4 0 0 64.58 3.70 1.4431 2 2 5 64.67 2.96 1.4414 1 3 5 65.10 1.92 1.4329 0 2 6 65.78 1.76 1.4197 1 5 1 66.72 2.76 1.4020 4 1 1 67.32 9.20 1.3908 1 2 6 68.02 2.21 1.3783 3 2 4 68.78 4.80 1.3649 3 3 3 71.57 2.03 1.3183 3 1 5 72.49 3.99 1.3039 1 5 3 73.18 3.04 1.2933 4 2 2 73.39 12.68 1.2901 4 1 3 73.81 3.11 1.2837 2 2 6 74.78 1.22 1.2695 2 5 2 77.16 4.11 1.2363 4 3 1 77.19 1.19 1.2358 0 6 0 78.81 9.33 1.2144 2 5 3 79.27 4.60 1.2085 1 6 0 80.39 1.26 1.1946 0 6 2 80.46 3.50 1.1937 2 1 7 81.77 1.49 1.1778 3 3 5 82.23 3.64 1.1724 0 3 7 82.81 2.86 1.1657 4 2 4 83.25 2.77 1.1606 0 5 5 84.22 4.29 1.1497 3 2 6 85.30 1.20 1.1379 1 5 5 85.70 1.00 1.1335 5 1 1 88.28 6.55 1.1069 4 4 2 88.59 1.33 1.1039 2 6 2 88.64 2.24 1.1034 5 2 0 88.89 11.54 1.1009 2 4 6 89.08 2.31 1.0991 3 5 3 89.86 2.01 1.0916 1 2 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.