Oftedalite
Cooper M A, Hawthorne F C, Ball N A, Cerny P, Kristiansen R
The Canadian Mineralogist 44 (2006) 943-949
Oftedalite, (Sc,Ca,Mn2+)2 K (Be,Al)3 Si12 O30, a new member of the milarite
group from the Heftetjern pegmatite, Tordal, Norway: description and crystal
structure
Locality: Heftetjern pegmatite, Tordal, Norway
_database_code_amcsd 0006096
CELL PARAMETERS: 10.0970 10.0970 13.9910 90.000 90.000 120.000
SPACE GROUP: P6/mcc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1235.276
Density (g/cm3): 2.613
MAX. ABS. INTENSITY / VOLUME**2: 10.51233341
RIR: 1.310
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
12.65 25.78 6.9955 0 0 2 2
16.23 9.92 5.4625 1 0 2 12
17.57 38.20 5.0485 1 1 0 6
20.31 20.81 4.3721 2 0 0 6
21.71 70.63 4.0938 1 1 2 12
24.00 12.36 3.7076 2 0 2 12
25.47 23.88 3.4978 0 0 4 2
26.98 1.64 3.3050 2 1 0 12
27.46 13.61 3.2476 1 0 4 12
27.73 100.00 3.2165 2 1 1 24
29.90 3.62 2.9883 2 1 2 24
30.67 19.92 2.9148 3 0 0 6
31.11 71.85 2.8751 1 1 4 12
32.79 23.39 2.7313 2 0 4 12
33.22 11.02 2.6965 2 1 3 24
33.30 1.42 2.6905 3 0 2 12
35.57 7.50 2.5243 2 2 0 6
37.07 7.46 2.4252 3 1 0 12
37.64 6.51 2.3896 3 1 1 24
37.89 6.41 2.3744 2 2 2 12
40.02 1.00 2.2531 1 0 6 12
41.30 1.63 2.1861 4 0 0 6
41.99 5.06 2.1517 3 1 3 24
42.71 2.86 2.1169 1 1 6 12
44.01 1.31 2.0575 2 0 6 12
45.20 1.13 2.0061 3 2 0 12
45.51 8.89 1.9930 3 1 4 24
45.69 4.39 1.9858 3 2 1 24
47.66 8.76 1.9082 4 1 0 12
48.13 6.11 1.8907 4 1 1 24
49.51 10.62 1.8409 4 1 2 24
49.75 16.74 1.8327 3 1 5 24
50.10 8.25 1.8208 3 0 6 12
52.31 6.61 1.7489 0 0 8 2
52.31 8.04 1.7489 5 0 0 6
53.43 1.47 1.7149 1 0 8 12
53.50 8.68 1.7128 2 2 6 12
54.80 8.01 1.6751 4 1 4 24
55.62 1.55 1.6525 4 2 0 12
56.04 4.84 1.6411 4 2 1 24
56.22 2.47 1.6362 3 3 2 12
56.69 3.99 1.6238 2 0 8 12
57.29 1.70 1.6082 4 2 2 24
58.55 3.19 1.5765 4 1 5 24
59.06 2.33 1.5642 5 0 4 12
59.33 1.30 1.5576 4 2 3 24
60.41 1.01 1.5324 5 1 2 24
60.92 1.15 1.5207 3 2 6 24
61.11 5.69 1.5165 3 3 4 12
61.87 6.07 1.4996 3 0 8 12
62.39 1.60 1.4884 5 1 3 24
64.86 5.38 1.4376 2 2 8 12
65.41 4.51 1.4267 6 0 2 12
65.61 6.67 1.4229 4 2 5 24
66.46 2.84 1.4067 2 1 9 24
66.81 9.88 1.4002 5 2 0 12
67.19 3.30 1.3932 5 2 1 24
67.91 1.65 1.3802 4 1 7 24
69.75 4.04 1.3483 1 1 10 12
69.93 4.64 1.3453 6 0 4 12
70.18 1.02 1.3411 5 2 3 24
71.01 1.16 1.3275 6 1 1 24
72.18 7.50 1.3088 3 1 9 24
72.75 2.55 1.2999 5 2 4 24
76.22 1.31 1.2492 7 0 0 6
79.31 1.99 1.2081 6 2 1 24
79.53 1.89 1.2052 4 1 9 24
79.65 2.90 1.2038 6 1 5 24
79.86 1.73 1.2011 4 2 8 24
79.91 5.99 1.2004 5 2 6 24
80.99 5.44 1.1872 4 4 4 12
81.00 2.74 1.1870 2 1 11 24
81.89 1.45 1.1764 7 0 4 12
82.13 1.47 1.1736 6 2 3 24
85.47 1.05 1.1360 1 1 12 12
85.82 2.69 1.1323 4 2 9 24
87.93 1.54 1.1105 4 3 8 24
89.04 1.60 1.0995 7 1 4 24
89.71 6.38 1.0930 5 2 8 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.