Euclase Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R100156 Hazen R M, Au A Y, Finger L W American Mineralogist 71 (1986) 977-984 High-pressure crystal chemistry of beryl (Be3Al2Si6O18) and euclase (BeAlSiO4OH) Sample: Pressure = .001 kbar _database_code_amcsd 0001036 CELL PARAMETERS: 4.7811 14.3410 4.6332 90.000 100.330 90.000 SPACE GROUP: P2_1/a ATOM X Y Z OCCUPANCY ISO(B) Si 0.17752 0.10027 0.53639 1.000 0.390 Al 0.24877 0.44470 0.95708 1.000 0.450 Be 0.17410 0.30060 0.45710 1.000 0.600 O 0.38180 0.03240 0.76300 1.000 0.520 O 0.38000 0.37700 0.65210 1.000 0.500 O 0.34310 0.19980 0.52480 1.000 0.530 O 0.10060 0.05310 0.21130 1.000 0.500 O 0.15960 0.33200 0.12060 1.000 0.710 H 0.06300 0.30200 0.01100 1.000 2.400 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 13 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 9.072053926 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 12.34 100.00 7.1705 0 2 0 19.47 10.79 4.5581 0 0 1 19.87 8.80 4.4694 1 1 0 20.44 1.42 4.3440 0 1 1 23.12 36.90 3.8467 0 2 1 24.83 8.77 3.5852 0 4 0 25.42 6.11 3.5036 -1 1 1 27.03 11.10 3.2988 0 3 1 27.65 54.02 3.2266 -1 2 1 30.30 4.67 2.9498 1 1 1 31.03 5.20 2.8824 -1 3 1 31.37 2.62 2.8514 1 4 0 31.75 15.13 2.8180 0 4 1 32.21 52.07 2.7788 1 2 1 35.27 29.50 2.5449 -1 4 1 36.70 30.29 2.4488 1 5 0 37.63 1.42 2.3902 0 6 0 38.27 17.03 2.3518 2 0 0 39.54 7.04 2.2791 0 0 2 39.86 13.09 2.2618 -2 0 1 40.06 10.13 2.2508 0 1 2 40.36 1.14 2.2347 2 2 0 40.37 1.56 2.2342 -2 1 1 41.29 2.40 2.1867 -1 1 2 41.58 2.85 2.1720 0 2 2 42.72 1.68 2.1168 0 6 1 42.85 3.05 2.1102 2 3 0 43.56 12.99 2.0779 1 5 1 44.02 1.51 2.0572 0 3 2 44.30 7.21 2.0445 -2 3 1 45.16 6.78 2.0079 -1 3 2 45.50 19.27 1.9934 -1 6 1 46.52 9.21 1.9522 2 0 1 46.97 1.25 1.9344 2 1 1 47.26 2.35 1.9233 0 4 2 48.32 7.30 1.8837 2 2 1 48.34 14.35 1.8829 -1 4 2 48.73 1.33 1.8686 0 7 1 49.11 1.71 1.8549 1 2 2 50.52 4.35 1.8065 -2 0 2 50.94 4.20 1.7926 0 8 0 51.20 4.53 1.7843 0 5 2 51.26 1.86 1.7821 -1 7 1 51.45 3.02 1.7760 -2 5 1 52.21 2.03 1.7519 -1 5 2 54.28 1.41 1.6899 -2 3 2 54.76 1.23 1.6764 2 6 0 54.80 4.36 1.6751 1 8 0 55.05 4.79 1.6682 0 8 1 55.73 2.24 1.6494 0 6 2 56.69 5.34 1.6237 -1 6 2 59.13 2.06 1.5625 -3 1 1 60.05 2.07 1.5407 1 8 1 60.57 1.53 1.5286 -2 5 2 61.02 2.40 1.5184 -2 7 1 61.53 5.37 1.5071 2 0 2 61.71 1.27 1.5033 -1 7 2 61.99 7.67 1.4970 1 6 2 63.03 2.05 1.4749 2 2 2 64.34 3.25 1.4480 0 3 3 64.68 1.27 1.4412 -2 6 2 64.76 5.83 1.4396 -3 4 1 64.87 2.29 1.4374 2 3 2 64.91 3.86 1.4365 3 4 0 65.47 1.56 1.4257 2 8 0 66.11 1.73 1.4133 2 7 1 66.34 1.01 1.4090 0 8 2 66.35 2.68 1.4088 -3 1 2 66.51 1.01 1.4058 -1 4 3 66.77 3.52 1.4011 1 7 2 66.81 1.20 1.4003 3 1 1 67.21 2.99 1.3928 -1 8 2 67.44 1.69 1.3888 -2 1 3 67.88 3.31 1.3807 3 2 1 68.01 6.43 1.3784 -3 5 1 68.16 7.78 1.3757 3 5 0 68.51 5.58 1.3696 -2 2 3 68.60 11.80 1.3680 0 10 1 69.35 2.13 1.3550 -2 7 2 69.60 7.21 1.3508 1 2 3 70.09 1.01 1.3426 0 5 3 70.28 6.41 1.3394 -2 3 3 71.35 3.67 1.3218 1 3 3 71.44 1.83 1.3204 2 8 1 71.52 1.13 1.3192 2 9 0 71.89 1.97 1.3133 -3 6 1 72.04 5.63 1.3110 3 6 0 72.07 4.52 1.3104 1 8 2 72.11 1.00 1.3098 3 4 1 73.78 4.07 1.2842 1 4 3 74.79 3.00 1.2695 -3 5 2 75.22 1.39 1.2632 3 5 1 75.91 1.18 1.2535 0 11 1 77.90 1.02 1.2263 -1 11 1 78.86 1.56 1.2138 0 10 2 79.06 1.17 1.2112 -2 10 1 80.64 1.38 1.1915 -4 0 1 83.45 2.47 1.1583 1 12 0 83.67 5.15 1.1558 2 10 1 83.87 1.48 1.1536 2 8 2 83.99 1.85 1.1522 -1 1 4 84.99 1.01 1.1412 -1 2 4 87.23 1.08 1.1176 3 9 0 87.28 1.42 1.1171 -4 2 2 87.94 1.07 1.1104 -3 5 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.