Beryl
Gibbs G V, Breck D W, Meagher E P
Lithos 1 (1968) 275-285
Structural refinement of hydrous and anhydrous synthetic beryl,
Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18
Note: hydrous emerald
Locality: synthetic
_database_code_amcsd 0019469
CELL PARAMETERS: 9.2140 9.2140 9.2180 90.000 90.000 120.000
SPACE GROUP: P6/mcc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 677.741
Density (g/cm3): 2.745
MAX. ABS. INTENSITY / VOLUME**2: 13.57213737
RIR: 1.610
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.09 83.38 7.9796 1 0 0 6
19.26 24.33 4.6090 0 0 2 2
22.27 12.09 3.9911 1 0 2 12
22.28 3.19 3.9898 2 0 0 6
27.37 100.00 3.2583 1 1 2 12
29.61 25.03 3.0166 2 0 2 12
29.62 7.35 3.0160 2 1 0 12
31.20 78.78 2.8665 2 1 1 24
33.70 2.24 2.6599 3 0 0 6
35.57 12.93 2.5237 2 1 2 24
39.09 7.20 2.3045 0 0 4 2
40.75 2.43 2.2140 1 0 4 12
40.77 3.30 2.2131 3 1 0 12
41.98 1.11 2.1524 2 1 3 24
41.98 6.48 2.1520 3 1 1 24
43.93 1.61 2.0610 1 1 4 12
43.94 1.32 2.0605 2 2 2 12
45.45 7.37 1.9955 2 0 4 12
45.46 1.16 1.9951 3 1 2 24
45.47 2.68 1.9949 4 0 0 6
49.81 2.74 1.8306 3 2 0 12
50.84 9.05 1.7958 3 1 3 24
52.54 12.04 1.7417 3 0 4 12
52.56 8.20 1.7413 4 1 0 12
53.56 7.05 1.7110 4 1 1 24
53.89 1.53 1.7013 3 2 2 24
56.48 12.26 1.6292 2 2 4 12
56.49 2.35 1.6289 4 1 2 24
57.76 1.87 1.5962 3 1 4 24
57.77 4.10 1.5959 5 0 0 6
58.69 2.36 1.5730 2 1 5 24
58.71 5.22 1.5727 3 2 3 24
60.24 4.32 1.5363 0 0 6 2
61.18 13.35 1.5149 4 1 3 24
61.49 1.33 1.5080 4 2 0 12
63.87 4.91 1.4574 1 1 6 12
63.89 4.67 1.4569 3 3 2 12
65.07 4.97 1.4334 3 2 4 24
65.08 4.99 1.4332 4 2 2 24
68.55 3.42 1.3690 2 1 6 24
68.57 3.16 1.3685 5 1 2 24
74.19 1.69 1.2781 2 2 6 12
74.22 8.26 1.2778 6 0 2 12
74.22 3.62 1.2778 5 2 0 12
75.03 4.42 1.2659 4 1 5 24
75.05 7.07 1.2657 5 2 1 24
75.30 1.53 1.2620 3 1 6 24
75.32 3.62 1.2618 4 2 4 24
78.62 1.39 1.2169 6 1 0 12
79.40 6.25 1.2068 2 1 7 24
79.43 6.63 1.2065 4 3 3 24
81.60 1.18 1.1798 5 2 3 24
83.99 3.13 1.1523 0 0 8 2
84.02 2.22 1.1519 6 0 4 12
85.10 2.51 1.1401 4 3 4 24
87.24 3.11 1.1175 5 2 4 24
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.