Oxy-chromium-dravite
Bosi F, Reznitskii L, Skogby H
American Mineralogist 97 (2012) 2024-2030
Oxy-chromium-dravite, NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O,
a new mineral species of the tourmaline supergroup
Locality: Pereval marble quarry, Sludyanka, Lake Baikal, Russia
_database_code_amcsd 0019734
CELL PARAMETERS: 16.1121 16.1121 7.3701 90.000 90.000 120.000
SPACE GROUP: R3m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1656.946
Density (g/cm3): 3.355
MAX. ABS. INTENSITY / VOLUME**2: 11.60317784
RIR: 1.126
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
13.59 68.25 6.5169 1 0 1 3
17.50 25.39 5.0667 0 2 1 3
19.08 27.98 4.6512 3 0 0 3
20.71 40.20 4.2889 2 1 1 6
22.07 63.03 4.0280 2 2 0 6
24.99 49.11 3.5629 0 1 2 3
26.01 7.80 3.4264 1 3 1 6
28.30 5.35 3.1530 4 0 1 3
29.33 6.01 3.0449 4 1 0 6
29.57 57.09 3.0207 1 2 2 6
30.44 6.99 2.9362 3 2 1 6
33.58 7.61 2.6687 3 1 2 6
34.36 100.00 2.6099 0 5 1 3
35.43 1.79 2.5333 0 4 2 3
36.18 5.33 2.4828 2 4 1 6
36.58 6.38 2.4567 0 0 3 1
37.21 20.21 2.4167 2 3 2 6
37.92 13.55 2.3727 5 1 1 6
38.72 5.10 2.3256 6 0 0 3
40.37 1.07 2.2343 5 2 0 6
40.55 19.45 2.2247 5 0 2 3
41.22 3.66 2.1903 4 3 1 6
41.57 7.31 2.1723 0 3 3 3
41.57 8.50 2.1723 3 0 3 3
42.14 4.91 2.1445 4 2 2 6
43.13 7.96 2.0974 2 2 3 6
43.68 47.30 2.0723 1 5 2 6
44.31 8.70 2.0444 1 6 1 6
45.01 3.02 2.0140 4 4 0 6
46.64 23.46 1.9474 3 4 2 6
47.24 1.00 1.9242 7 0 1 3
47.24 3.79 1.9242 3 5 1 6
47.56 8.14 1.9120 1 4 3 6
48.65 4.35 1.8716 6 2 1 6
49.46 1.47 1.8427 6 1 2 6
50.34 3.56 1.8126 3 3 3 6
51.28 2.46 1.7814 0 2 4 3
52.02 1.78 1.7580 6 3 0 6
52.17 1.53 1.7533 5 3 2 6
52.72 2.17 1.7363 5 4 1 6
53.49 2.76 1.7132 2 6 2 6
54.32 15.74 1.6889 0 6 3 3
54.32 5.84 1.6889 6 0 3 3
55.31 11.44 1.6608 2 7 1 6
56.48 4.65 1.6292 4 0 4 3
57.17 13.97 1.6112 5 5 0 6
57.31 5.85 1.6076 4 5 2 6
57.73 2.05 1.5969 3 2 4 6
57.83 2.19 1.5945 8 1 1 6
59.06 4.83 1.5641 4 6 1 6
59.64 5.56 1.5504 9 0 0 3
59.77 5.19 1.5472 7 2 2 6
60.18 14.89 1.5376 0 5 4 3
60.28 1.99 1.5354 7 3 1 6
60.84 3.89 1.5225 8 2 0 6
61.38 5.56 1.5104 2 4 4 6
62.17 1.27 1.4931 1 8 2 6
62.57 13.99 1.4845 5 1 4 6
62.93 2.56 1.4769 1 7 3 6
63.35 4.43 1.4681 6 4 2 6
63.46 3.89 1.4659 0 1 5 3
64.39 6.62 1.4469 7 4 0 6
64.91 9.38 1.4365 4 3 4 6
65.00 9.13 1.4347 6 5 1 6
65.26 2.27 1.4296 3 6 3 6
65.26 3.34 1.4296 6 3 3 6
67.30 1.26 1.3913 3 8 1 6
68.43 7.59 1.3710 10 0 1 3
69.09 3.89 1.3595 5 6 2 6
69.19 2.14 1.3578 0 4 5 3
69.47 1.39 1.3530 7 0 4 3
69.47 3.11 1.3530 3 5 4 6
69.56 1.11 1.3516 9 2 1 6
69.81 4.32 1.3473 5 5 3 6
70.08 4.32 1.3427 6 6 0 6
70.31 3.06 1.3389 2 3 5 6
70.58 1.01 1.3344 6 2 4 6
71.19 7.94 1.3244 10 1 0 6
71.32 2.41 1.3224 8 3 2 6
71.78 1.48 1.3151 5 7 1 6
72.03 1.78 1.3111 9 0 3 3
72.42 1.30 1.3049 0 10 2 3
72.52 10.18 1.3034 5 0 5 3
73.13 2.65 1.2941 2 8 3 6
73.40 3.65 1.2900 9 3 0 6
73.89 1.76 1.2826 5 4 4 6
75.70 1.15 1.2564 7 5 2 6
76.15 2.90 1.2501 0 11 1 3
76.39 1.41 1.2467 7 4 3 6
76.78 1.72 1.2414 4 8 2 6
76.88 1.18 1.2401 3 4 5 6
77.23 1.06 1.2353 2 10 1 6
77.75 1.70 1.2284 0 0 6 1
79.02 2.09 1.2117 6 1 5 6
80.44 3.93 1.1939 11 1 1 6
80.95 1.54 1.1876 3 0 6 3
82.80 5.35 1.1658 10 1 3 6
84.23 1.25 1.1495 1 11 2 6
84.91 1.71 1.1421 9 3 3 6
85.38 1.08 1.1370 4 5 5 6
87.28 1.07 1.1170 3 3 6 6
87.74 2.05 1.1124 10 0 4 3
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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.