Chopinite
Grew E S, Armbruster T, Medenbach O, Yates M G, Carson C J
European Journal of Mineralogy 19 (2007) 229-245
Chopinite, [(Mg,Fe)3_](PO4)2, a new mineral isostructural with sarcopside,
from a fluorapatite segregation in granulite-facies paragneiss, Larsemann Hills,
Prydz Bay, East Antarctica
Locality: Brattnevet, Larsemann Hills, Prydz Bay, East Antarctica
_database_code_amcsd 0007216
CELL PARAMETERS: 5.9305 4.7583 10.2566 90.000 90.663 90.000
SPACE GROUP: P2_1/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 289.413
Density (g/cm3): 3.281
MAX. ABS. INTENSITY / VOLUME**2: 10.54834757
RIR: 1.047
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
14.94 43.75 5.9301 1 0 0 2
17.29 1.20 5.1280 0 0 2 2
20.58 25.24 4.3164 0 1 1 4
22.79 2.00 3.9012 -1 0 2 2
23.06 100.00 3.8568 1 0 2 2
23.98 17.25 3.7113 1 1 0 4
25.46 4.61 3.4979 -1 1 1 4
25.54 10.29 3.4880 0 1 2 4
25.58 40.10 3.4817 1 1 1 4
29.61 3.23 3.0169 -1 1 2 4
29.82 2.29 2.9962 1 1 2 4
30.14 22.86 2.9651 2 0 0 2
32.24 47.74 2.7764 0 1 3 4
35.14 1.06 2.5541 2 0 2 2
35.58 59.44 2.5236 -1 1 3 4
35.84 11.88 2.5054 1 1 3 4
36.69 40.65 2.4495 -2 1 1 4
36.86 33.05 2.4384 2 1 1 4
37.81 1.71 2.3791 0 2 0 2
38.41 6.71 2.3436 1 0 4 2
38.86 10.13 2.3176 0 2 1 4
39.74 11.49 2.2679 -2 1 2 4
39.94 17.02 2.2571 0 1 4 4
40.07 7.36 2.2504 2 1 2 4
40.87 1.54 2.2081 1 2 0 4
41.81 6.54 2.1605 -1 2 1 4
41.89 12.22 2.1567 1 2 1 4
44.61 7.26 2.0312 -1 2 2 4
44.76 1.69 2.0249 1 2 2 4
45.91 1.68 1.9767 3 0 0 2
47.13 1.62 1.9284 2 0 4 2
48.32 1.81 1.8836 0 1 5 4
49.10 2.73 1.8556 2 2 0 4
50.70 9.15 1.8005 -3 1 1 4
51.03 12.89 1.7898 1 1 5 4
52.31 18.05 1.7490 -2 2 2 4
52.47 9.19 1.7440 0 2 4 4
52.57 16.95 1.7409 2 2 2 4
53.46 5.61 1.7140 3 1 2 4
55.00 15.33 1.6696 1 2 4 4
55.80 13.22 1.6475 -1 0 6 2
56.17 3.19 1.6374 1 0 6 2
56.93 1.77 1.6175 -3 1 3 4
57.48 16.09 1.6032 3 1 3 4
57.70 1.09 1.5976 -2 1 5 4
58.64 9.13 1.5743 -3 0 4 2
58.92 3.03 1.5675 0 3 1 4
60.41 2.13 1.5322 1 3 0 4
60.93 1.78 1.5204 3 2 0 4
61.16 2.46 1.5153 0 3 2 4
61.19 5.54 1.5148 1 3 1 4
61.47 1.16 1.5084 -2 2 4 4
61.58 1.32 1.5059 -3 2 1 4
61.76 1.17 1.5020 3 2 1 4
61.87 1.12 1.4996 1 2 5 4
62.39 10.50 1.4883 -2 0 6 2
62.67 14.61 1.4825 4 0 0 2
63.09 7.61 1.4735 2 0 6 2
63.41 1.02 1.4669 1 3 2 4
63.68 2.26 1.4612 -3 2 2 4
64.80 1.68 1.4388 0 3 3 4
66.60 1.32 1.4042 -4 1 1 4
66.81 6.45 1.4003 0 1 7 4
66.84 7.89 1.3998 -1 3 3 4
67.55 2.40 1.3868 -2 3 1 4
68.43 1.64 1.3709 -3 1 5 4
69.10 2.43 1.3594 1 1 7 4
69.38 2.40 1.3545 -1 2 6 4
69.58 4.70 1.3512 -2 3 2 4
69.71 2.01 1.3489 0 3 4 4
69.80 4.91 1.3474 2 3 2 4
71.66 1.55 1.3170 -1 3 4 4
71.87 3.07 1.3135 1 3 4 4
71.92 3.18 1.3129 -3 2 4 4
71.92 3.10 1.3129 -4 1 3 4
72.57 1.83 1.3027 4 1 3 4
73.69 6.14 1.2856 3 0 6 2
75.57 2.18 1.2582 4 2 0 4
75.72 1.25 1.2560 -1 0 8 2
75.96 1.63 1.2527 2 2 6 4
77.10 1.91 1.2371 3 3 0 4
77.87 1.14 1.2267 -3 2 5 4
78.67 1.05 1.2163 3 2 5 4
80.79 1.76 1.1896 0 4 0 2
83.25 3.07 1.1606 3 3 3 4
83.44 1.55 1.1585 -2 3 5 4
83.83 1.46 1.1540 -2 2 7 4
83.96 1.39 1.1526 2 3 5 4
83.96 2.17 1.1526 5 0 2 2
84.31 2.41 1.1486 -3 1 7 4
84.56 1.46 1.1459 2 2 7 4
86.17 1.06 1.1286 0 2 8 4
86.49 1.22 1.1252 4 2 4 4
87.25 1.42 1.1174 -3 3 4 4
87.88 1.52 1.1110 3 3 4 4
88.32 1.07 1.1066 1 2 8 4
89.17 1.12 1.0982 -2 4 1 4
89.28 1.55 1.0972 2 4 1 4
89.57 3.01 1.0944 -5 1 3 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.