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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
***Click the ANX, Pearson or Wyckoff Symbol to find structures with that symbol***.
CC=100450 Help
TitleThermal expansion and high temperature crystal chemistry of the Al2 Si O5 polymorphs.
AuthorsWinter, J.K.;Ghose, S.
ReferenceAmerican Mineralogist (1979) 64, 573-586
Link XRef SCOPUS SCIRUS Google
Also: Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (1928) 68, 503-521
Link XRef SCOPUS SCIRUS Google
Also: Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (1929) 71, 205-218
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Also: Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (1963) 118, 127-148
Link XRef SCOPUS SCIRUS Google
CompoundAl2 O5 Si1 - [Sillimanite] Dialuminium silicate oxide [AB2X5] [oP32] [d c5 a] []
Cell7.4883(7), 7.6808(7), 5.7774(5), 90., 90., 90.
PBNM (62) V=332.29
RemarksR=0.032000 : PDF =38-471 : TEM =298 : MIN =Sillimanite :

Atom (site) Oxid. x, y, z, B, Occupancy
Al1(4a)3
Al2(4c)3
Si1(4c)4
O1(4c)-2
O2(4c)-2
O3(4c)-2
O4(8d)-2
00001
0.1417(1)0.3449(1)0.2501
0.1533(1)0.3402(1)0.7501
0.3605(3)0.4094(3)0.7501
0.3569(3)0.4341(3)0.2501
0.4763(3)0.0015(4)0.7501
0.1252(2)0.2230(2)0.5145(3)01
Atom (site) Oxid. Beta11, Beta22, Beta33, Beta12, Beta13, Beta23
Al1(4a)3
Al2(4c)3
Si1(4c)4
O1(4c)-2
O2(4c)-2
O3(4c)-2
O4(8d)-2
0.0009(1)0.0019(1)0.0041(2)-.0001(1)0.0000(2)-.0001(2)
0.0012(1)0.0024(1)0.0045(3)-.0001(1)00
0.0008(1)0.0019(1)0.0045(2)-.0002(1)00
0.0012(3)0.0027(3)0.0055(6)-.0005(3)00
0.0012(3)0.0033(4)0.0047(6)-.0004(3)00
0.0030(4)0.0033(3)0.0089(6)-.0016(3)00
0.0022(2)0.0025(2)0.0044(4)-.0005(2)0.0000(3)0.0000(3)

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