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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=200803 Help
TitleCrystal structure of natural monoclinic kurchatovite Ca2 (Mg0.86 Fe0.14) (Mg0.92 Fe0.08) (B2 O5)2.
AuthorsSimonov, M.A.; Egorov-Tismenko, Yu.K.; Yamnova, M.A.; Belokoneva, E.L.; Belov, N.V.
ReferenceIC&volume=251&fpage=112&details=yes target=icsd_help>Doklady Akademii Nauk SSSR (1980) 251, 112-112
Link XRef SCOPUS Google
CompoundB4 Ca2 Fe0.22 Mg1.78 O10 - [Clinokurchatovite] Calcium magnesium iron diborate (2/1.8/0.2/2) [ABC2X5] [mP72] [e18] []
Cell12.45, 5.514, 11.145, 90., 90., 104.13
P1121/B (14) V=741.95
RemarksR=0.046000 : P =43-689 : M =Clinokurchatovite :
Calculated density unusual but tolerable.
PDF 43-689

Atom (site) Oxid. x, y, z, B, Occupancy
Ca1(4e)2
Ca2(4e)2
Mg1(4e)2
Fe1(4e)2
Mg2(4e)2
Fe2(4e)2
O1(4e)-2
O2(4e)-2
O3(4e)-2
O4(4e)-2
O5(4e)-2
O6(4e)-2
O7(4e)-2
O8(4e)-2
O9(4e)-2
O10(4e)-2
B1(4e)3
B2(4e)3
B3(4e)3
B4(4e)3
0.580.930.370.61
0.090.460.380.631
0.260.510.120.310.86
0.260.510.120.310.14
0.760.000.120.280.92
0.760.000.120.280.08
0.440.550.370.751
0.940.070.390.711
0.430.610.080.681
0.090.410.160.761
0.930.130.090.691
0.770.170.450.731
0.760.860.300.681
0.280.670.300.671
0.260.350.450.691
0.590.880.150.741
0.820.030.380.581
0.320.520.370.61
0.990.360.120.631
0.480.840.110.61

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