Crystallography Open Database

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Searching space group like 'C 1 2/m 1 (a+c-1/4,b+1/4,c)'

COD ID: 9001817
CIF file Formula: - H0.355 Mg3.44 O8 Si1.888 -
Comments: Smyth, J. R.; Kawamoto, T.; Jacobsen, S. D.; Swope, R. J.; Hervig, R. L.; Holloway, J. R. Crystal structure of monoclinic hydrous wadsleyite [beta-(Mg,Fe)2SiO4] Note: occupancies of octahedral sites are estimates American Mineralogist 82 (1997) 270-275
Space group: C 1 2/m 1 (a+c-1/4,b+1/4,c)
Cell volume: 542.433
Cell parameters: 5.6715; 11.582; 8.258; 90; 90.397; 90;  

COD ID: 9006636
CIF file Formula: - Mg1.82 O4 Si -
Comments: Kudoh, Y.; Inoue, T. Mg-vacant structural modules and dilution of the symmetry of hydrous wadsleyite, beta-Mg2-xSiH2xO4 with 0.00<=x<=0.25 Sample: 0.3H-beta Physics and Chemistry of Minerals 26 (1999) 382-388
Space group: C 1 2/m 1 (a+c-1/4,b+1/4,c)
Cell volume: 536.264
Cell parameters: 5.674; 11.477; 8.235; 90; 90.21; 90;  

COD ID: 9006637
CIF file Formula: - Mg1.72 O4 Si -
Comments: Kudoh, Y.; Inoue, T. Mg-vacant structural modules and dilution of the symmetry of hydrous wadsleyite, beta-Mg2-xSiH2xO4 with 0.00<=x<=0.25 Sample: 0.5H-beta Physics and Chemistry of Minerals 26 (1999) 382-388
Space group: C 1 2/m 1 (a+c-1/4,b+1/4,c)
Cell volume: 541.719
Cell parameters: 5.675; 11.579; 8.244; 90; 90.09; 90;  


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