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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=27598 Help
TitleThe structure of eudidymite (H Na Be Si3 O8).
AuthorsIto, T.
ReferenceIC&volume=32&fpage=442&details=yes target=icsd_help>American Mineralogist (1947) 32, 442-453
Link XRef SCOPUS Google
CompoundH1 Be1 Na1 O8 Si3 - [Eudidymite] Sodium beryllium closo-heptaoxotrisilicate hydroxide [ABC3X8] [mS112] [f11 e4] []
Cell12.62, 7.37, 13.99, 90., 103.72, 90.
C12/C1 (15) V=1264.07
RemarksM =Eudidymite : P =14-201 :
At least one temperature factor missing in the paper.
Coordinates are those given in the paper but are obviously wrong.
No R value given in the paper.
PDF 14-201, cp. 26001 for correct structure

Atom (site) Oxid. x, y, z, B, Occupancy
O1(8f)-2
O2(8f)-2
O3(4e)-2
O4(4e)-2
O5(8f)-2
O6(8f)-2
O7(8f)-2
O8(8f)-2
Si1(8f)4
Si2(8f)4
Si3(8f)4
Na1(4e)1
Na2(4e)1
Be1(8f)2
O9(8f)-2
H1(8*)1
0.050.030.3901
0.550.030.3901
00.270.2501
0.50.270.2501
0.160.030.1901
0.660.030.1901
0.200.310.3701
0.700.310.3701
0.060.410.3101
0.560.410.3101
0.240.120.2401
00.030.2501
0.50.030.2501
0.420.130.3201
0.300.190.4901.
01.

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