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: anhydrous emerald
Locality: synthetic
_database_code_amcsd 0019468
CELL PARAMETERS: 9.2190 9.2190 9.1980 90.000 90.000 120.000
SPACE GROUP: P6/mcc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 677.005
Density (g/cm3): 2.649
MAX. ABS. INTENSITY / VOLUME**2: 19.25201434
RIR: 2.367
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.08 100.00 7.9839 1 0 0 6
19.26 3.18 4.6095 1 1 0 6
19.30 22.87 4.5990 0 0 2 2
22.27 5.91 3.9919 2 0 0 6
22.31 17.50 3.9851 1 0 2 12
27.39 55.81 3.2557 1 1 2 12
29.60 2.33 3.0176 2 1 0 12
29.63 11.60 3.0147 2 0 2 12
31.19 54.98 2.8673 2 1 1 24
35.58 14.94 2.5230 2 1 2 24
39.18 4.31 2.2995 0 0 4 2
40.75 1.24 2.2143 3 1 0 12
41.97 4.75 2.1528 3 1 1 24
44.01 1.93 2.0577 1 1 4 12
45.44 2.58 1.9960 4 0 0 6
45.46 1.75 1.9951 3 1 2 24
45.52 6.68 1.9926 2 0 4 12
49.78 2.70 1.8316 3 2 0 12
50.87 6.21 1.7951 3 1 3 24
52.53 4.88 1.7422 4 1 0 12
52.60 7.33 1.7400 3 0 4 12
53.53 4.93 1.7118 4 1 1 24
56.48 1.19 1.6292 4 1 2 24
56.53 7.85 1.6278 2 2 4 12
57.74 3.25 1.5968 5 0 0 6
57.81 1.83 1.5950 3 1 4 24
58.72 3.59 1.5724 3 2 3 24
58.79 1.62 1.5707 2 1 5 24
60.38 3.21 1.5330 0 0 6 2
61.19 9.37 1.5148 4 1 3 24
63.88 2.97 1.4573 3 3 2 12
64.01 3.11 1.4547 1 1 6 12
65.06 4.06 1.4336 4 2 2 24
65.11 4.08 1.4327 3 2 4 24
68.55 2.58 1.3689 5 1 2 24
68.67 2.80 1.3667 2 1 6 24
74.17 2.44 1.2784 5 2 0 12
74.19 5.60 1.2782 6 0 2 12
74.31 1.07 1.2764 2 2 6 12
75.01 4.91 1.2663 5 2 1 24
75.10 3.09 1.2650 4 1 5 24
75.34 2.33 1.2615 4 2 4 24
75.42 1.24 1.2604 3 1 6 24
78.57 1.07 1.2175 6 1 0 12
79.42 4.74 1.2066 4 3 3 24
79.57 4.31 1.2047 2 1 7 24
84.04 1.62 1.1517 6 0 4 12
84.21 2.16 1.1497 0 0 8 2
85.11 1.86 1.1399 4 3 4 24
87.25 2.14 1.1174 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.