Bracewellite
Milton C, Appleman D E, Appleman M H, Chao E C T, Cuttita F,
Dinnin J I, Dwornik E J, Ingram B L, Rose H J
U.S. Geological Survey Professional Paper 887 (1976) 1-29
Merumite, a complex assemblage of chromium minerals from Guyana
Locality: Guyana
_database_code_amcsd 0015707
CELL PARAMETERS: 4.4920 9.8600 2.9740 90.000 90.000 90.000
SPACE GROUP: Pbnm
X-RAY WAVELENGTH: 1.541838
Cell Volume: 131.722
Density (g/cm3): 4.235
MAX. ABS. INTENSITY / VOLUME**2: 35.54968476
RIR: 2.733
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.99 12.06 4.9300 0 2 0 2
21.74 100.00 4.0878 1 1 0 4
26.85 13.14 3.3204 1 2 0 4
33.79 39.24 2.6525 1 3 0 4
35.24 22.22 2.5465 0 2 1 4
36.22 6.04 2.4798 1 0 1 4
36.45 15.86 2.4650 0 4 0 2
37.39 69.36 2.4049 1 1 1 8
40.15 2.26 2.2460 2 0 0 2
40.73 10.28 2.2153 1 2 1 8
41.22 2.59 2.1899 2 1 0 4
41.80 17.99 2.1610 1 4 0 4
44.32 1.17 2.0439 2 2 0 4
45.84 3.50 1.9795 1 3 1 8
47.93 5.57 1.8978 0 4 1 4
50.55 1.19 1.8057 1 5 0 4
51.85 12.21 1.7634 2 1 1 8
52.33 2.90 1.7482 1 4 1 8
54.47 32.40 1.6844 2 2 1 8
55.34 8.97 1.6602 2 4 0 4
55.95 3.15 1.6433 0 6 0 2
58.67 8.51 1.5735 2 3 1 8
59.93 22.54 1.5435 1 5 1 8
62.46 10.40 1.4870 0 0 2 2
62.70 4.95 1.4819 2 5 0 4
64.26 2.44 1.4496 2 4 1 8
64.82 11.10 1.4384 0 6 1 4
65.11 5.11 1.4327 3 2 0 4
66.96 5.66 1.3974 1 1 2 8
68.91 3.93 1.3626 3 3 0 4
69.23 1.21 1.3571 1 2 2 8
70.00 5.40 1.3440 1 7 0 4
70.40 4.15 1.3374 3 0 1 4
71.08 1.74 1.3262 2 6 0 4
71.14 1.19 1.3253 3 1 1 8
72.93 6.19 1.2971 1 3 2 8
73.35 1.76 1.2907 3 2 1 8
74.52 2.90 1.2733 0 4 2 4
76.97 2.05 1.2388 3 3 1 8
78.00 2.77 1.2250 1 4 2 8
81.96 3.73 1.1755 3 4 1 8
85.23 2.31 1.1386 0 8 1 4
87.41 3.13 1.1158 4 1 0 4
88.21 3.44 1.1077 2 4 2 8
88.30 1.07 1.1068 3 6 0 4
88.72 1.30 1.1026 0 6 2 4
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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.