Information card for entry 1546283

Structure parameters

• Formula: Al7.79 Ca1.67 H47 K2.72 Mg0.13 Na0.22 O71.5 Si16.32 Sr0.39
• Calculated formula: Al7.68 Ca0.36 K4 O66.94 Si16.32
• Title of publication: Crystal structure of a K-rich natural gmelinite and comparison with the other refined gmelinite samples
• Authors of publication: Vezzalini, Giovanna; Quartieri, Simona; Passaglia, Elio
• Journal of publication: Neues Jahrbuch fur Mineralogie-Monatshefte
• Year of publication: 1990
• Journal volume: 11
• Pages of publication: 504 - 516
• a: 13.621 ± 0.003 Å
• b: 13.621 ± 0.003 Å
• c: 10.254 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1647.6 ± 0.5 ų
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 9
• Space group number: 194
• Hermann-Mauguin space group symbol: P 63/m m c
• Hall space group symbol: -P 6c 2c
• Residual factor for significantly intense reflections: 0.0677
• Weighted residual factors for significantly intense reflections: 0.0592
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.71069 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No