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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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TitleGmelinite: structural refinements of sodium-rich and calcium-rich natural crystals.
AuthorsGalli, E.;Passaglia, E.;Zanazzi, P.F.
ReferenceNeues Jahrbuch fuer Mineralogie. Monatshefte (1982) 1982, 145-155
Link XRef SCOPUS SCIRUS Google
Also: Neues Jahrbuch fuer Mineralogie. Monatshefte (1978) 1978, 310-324
Link XRef SCOPUS SCIRUS Google
CompoundH10 Al2 Na2 O17 Si4 - [Gmelinite] Disodium tecto-dialumotetrasilicate pentahydrate [A2B6X17] [hP140] [l k4 j2 i h f] []
Cell13.756(5), 13.756(5), 10.048(5), 90., 90., 120.
P63/MMC (194) V=1646.63
RemarksR=0.064000 : DEF MIN =Gmelinite : PDF =38-435 :
Deviation of the charge sum from zero tolerable.
Calculated density unusual but tolerable.
At least one temperature factor is implausible or meaningless but agrees with the value given in the paper.
PDF 38-435, Mean T-O: 1.642, R(isotropic)=0.076
Tables of anisotropic thermal parameters may be obtained from the authors

Atom (site) Oxid. x, y, z, B, Occupancy
Al1(24l)3
Si1(24l)4
O1(12k)-2
O2(12k)-2
O3(12j)-2
O4(12i)-2
O5(12j)-2
O6(6h)-2
O7(12k)-2
Na1(4f)1
Na2(12k)1
H1(2*)1
0.4419(2)0.1058(2)0.0944(3)0.830.3333
0.4419(2)0.1058(2)0.0944(3)0.830.6667
0.4158(9)0.20790.0605(10)1.961
0.8524(9)0.42620.063(1)1.731
0.4126(8)0.0664(8)0.251.761
0.3559(7)001.951
0.1997(20)0.5430(21)0.255.370.5
0.3356(27)0.1678-.2510.411.
0.1544(17)0.07720.1271(37)16.830.66
0.33330.66670.0734(12)3.181
0.2246(23)0.1123-.0617(42)9.190.33
020.

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