Information card for entry 9001554

Structure parameters

• Mineral name: Beryl
• Formula: Al1.97 Be3 Fe0.03 H0.26 Na0.016 O18.24 Si6
• Calculated formula: Al1.97 Be3 Fe0.03 H0.26 Na0.016 O18.24 Si6
• Title of publication: Structure refinements of beryl by single-crystal neutron and X-ray diffraction Sample no. 2, aquamarine, probed with neutrons, T = 295 K
• Authors of publication: Artioli, G.; Rinaldi, R.; Stahl, K.; Zanazzi, P. F.
• Journal of publication: American Mineralogist
• Year of publication: 1993
• Journal volume: 78
• Pages of publication: 762 - 768
• a: 9.218 Å
• b: 9.218 Å
• c: 9.197 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 676.784 ų
• Ambient diffraction temperature: 295 K
• Number of distinct elements: 7
• Space group number: 192
• Hermann-Mauguin space group symbol: P 6/m c c
• Hall space group symbol: -P 6 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No