Information card for entry 9013819

Structure parameters

• Mineral name: Nepheline
• Formula: Al4 K0.778 Na3 O18 Si2
• Calculated formula: Al4 K0.778 Na3 O18 Si1.99999
• Title of publication: Nepheline: structure of three samples from the Bancroft area, Ontario, obtained using synchrotron high-resolution powder x-ray diffraction Sample: 3
• Authors of publication: Antao, S. M.; Hassan, I.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 2010
• Journal volume: 48
• Pages of publication: 69 - 80
• a: 9.99567 Å
• b: 9.99567 Å
• c: 8.37873 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 724.991 ų
• Number of distinct elements: 5
• Space group number: 173
• Hermann-Mauguin space group symbol: P 63
• Hall space group symbol: P 6c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No