Majorite
Nakatsuka A, Yoshiasa A, Yamanaka T, Ito E
American Mineralogist 84 (1999) 199-202
Structure refinement of birefringent Cr-bearing majorite
Mg3(Mg.34Si.34Al.18Cr.14)2Si3O12
_database_code_amcsd 0002087
CELL PARAMETERS: 11.5120 11.5120 11.5150 90.000 90.000 90.000
SPACE GROUP: I4_1/a
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1526.039
Density (g/cm3): 3.560
MAX. ABS. INTENSITY / VOLUME**2: 13.34054422
RIR: 1.220
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
18.88 44.87 4.7006 1 1 2 8
18.88 2.30 4.7000 2 1 1 8
18.88 2.31 4.7000 1 2 1 8
21.83 3.25 4.0706 2 0 2 8
21.84 1.62 4.0701 2 2 0 4
29.02 1.17 3.0772 2 1 3 8
29.02 1.17 3.0772 1 2 3 8
29.02 11.78 3.0769 3 1 2 8
29.02 11.57 3.0769 1 3 2 8
29.02 1.26 3.0768 3 2 1 8
29.02 1.19 3.0768 2 3 1 8
31.07 22.65 2.8788 0 0 4 2
31.07 43.52 2.8780 4 0 0 4
34.85 33.51 2.5747 2 0 4 8
34.85 32.84 2.5743 4 0 2 8
34.85 16.89 2.5742 4 2 0 4
34.85 16.76 2.5742 2 4 0 4
36.61 11.87 2.4546 3 2 3 8
36.61 12.33 2.4546 2 3 3 8
38.30 10.32 2.3503 2 2 4 8
38.30 10.44 2.3500 4 2 2 8
38.30 10.44 2.3500 2 4 2 8
39.93 4.32 2.2581 3 1 4 8
39.93 4.19 2.2581 1 3 4 8
39.93 4.34 2.2579 4 1 3 8
39.93 4.31 2.2579 1 4 3 8
39.93 4.42 2.2577 4 3 1 8
39.93 4.40 2.2577 3 4 1 8
43.03 1.95 2.1023 2 1 5 8
43.03 1.93 2.1023 1 2 5 8
43.03 15.01 2.1019 5 1 2 8
43.03 14.77 2.1019 1 5 2 8
43.04 1.90 2.1018 5 2 1 8
43.04 1.92 2.1018 2 5 1 8
48.75 15.59 1.8680 1 1 6 8
48.75 1.03 1.8678 3 2 5 8
48.75 1.16 1.8678 2 3 5 8
48.76 1.11 1.8676 5 2 3 8
48.76 1.20 1.8676 2 5 3 8
48.76 9.37 1.8675 5 3 2 8
48.76 9.57 1.8675 3 5 2 8
48.76 3.68 1.8675 6 1 1 8
48.76 3.74 1.8675 1 6 1 8
50.10 3.39 1.8206 2 0 6 8
50.11 3.28 1.8203 6 0 2 8
50.12 1.65 1.8202 2 6 0 4
50.12 1.66 1.8202 6 2 0 4
54.01 1.43 1.6977 3 1 6 8
54.01 1.38 1.6977 1 3 6 8
55.28 12.27 1.6618 4 4 4 8
57.74 13.60 1.5967 4 0 6 8
57.75 13.73 1.5966 6 0 4 8
57.75 6.98 1.5964 4 6 0 4
57.75 6.80 1.5964 6 4 0 4
58.95 2.43 1.5669 3 3 6 8
58.96 3.72 1.5666 5 5 2 8
58.96 1.81 1.5666 7 1 2 8
58.96 1.72 1.5666 1 7 2 8
60.14 11.76 1.5386 4 2 6 8
60.14 11.78 1.5386 2 4 6 8
60.14 12.04 1.5385 6 2 4 8
60.14 12.13 1.5385 2 6 4 8
60.15 12.00 1.5384 6 4 2 8
60.15 11.81 1.5384 4 6 2 8
63.64 1.58 1.4622 5 1 6 8
63.64 1.57 1.4622 1 5 6 8
64.77 4.07 1.4394 0 0 8 2
64.79 7.91 1.4390 8 0 0 4
73.57 4.55 1.2873 4 0 8 8
73.59 4.52 1.2871 8 0 4 8
73.59 2.29 1.2871 4 8 0 4
73.59 2.32 1.2871 8 4 0 4
75.71 2.66 1.2563 4 2 8 8
75.71 2.68 1.2563 2 4 8 8
75.72 2.76 1.2561 8 2 4 8
75.72 2.71 1.2561 2 8 4 8
75.72 2.64 1.2561 8 4 2 8
75.72 2.67 1.2561 4 8 2 8
76.77 1.33 1.2415 5 5 6 8
77.83 3.49 1.2273 4 6 6 8
77.83 3.50 1.2273 6 4 6 8
77.83 3.46 1.2272 6 6 4 8
89.22 1.00 1.0977 7 5 6 8
89.22 1.01 1.0977 5 7 6 8
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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.