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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=62410 Help
TitleStructure of alpha-quartz as a function of temperature and pressure.
AuthorsOgata, K.;Takeuchi, Y.;Kudoh, Y.
ReferenceZeitschrift fuer Kristallographie (1987) 179, 403-413
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CompoundO2 Si1 - [Quartz low] Silicon oxide - alpha [AX2] [hP9] [c a] []
Cell4.8430(5), 4.8430(5), 5.3480(8), 90., 90., 120.
P3221 (154) V=108.63
RemarksR=0.031000 : P =1940 : T =433 : M =Quartz low :

Atom (site) Oxid. x, y, z, B, Occupancy
Si1(3a)4
O1(6c)-2
0.4600.6601
0.410.270.7701
Atom (site) Oxid. B11, B22, B33, B12, B13, B23
Si1(3a)4
O1(6c)-2
0.7(1.0(0.620.50.7(1.4
2.5(2.1(1.2(1.6(-.3(-.4(

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