Information card for entry 2002896

Structure parameters

• Formula: Al1.15 Na1.15 O4 Si0.85
• Calculated formula: Al0.066 Na0.154 O0.112 Si0.066
• Title of publication: Cristobalite-Related Phases in the NaAlO~2~‒NaAlSiO~4~ System. I. Two Tetragonal and Two Orthorhombic Structures
• Authors of publication: Thompson, John G; Withers, Ray L.; Melnitchenko, Alexandra; Palethorpe, Stephen R.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 1998
• Journal volume: 54
• Journal issue: 5
• Pages of publication: 531 - 546
• a: 10.214 ± 0.002 Å
• b: 14.226 ± 0.007 Å
• c: 10.308 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1497.8 ± 0.8 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 4
• Space group number: 29
• Hermann-Mauguin space group symbol: P b 21 a
• Hall space group symbol: P -2a -2ab
• Diffraction radiation wavelength: 1.5418 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No