Information card for entry 9001514

Structure parameters

• Mineral name: Topaz
• Formula: Al2 H2 O6 Si
• Calculated formula: Al2 H2 O6 Si
• Title of publication: Synthesis, stability, and properties of Al2SiO4(OH)2: A fully hydrated analogue of topaz
• Authors of publication: Wunder, B.; Rubie, D. C.; Ross, C. R.; Medenbach, O.; Seifert, F.; Schreyer, W.
• Journal of publication: American Mineralogist
• Year of publication: 1993
• Journal volume: 78
• Pages of publication: 285 - 297
• a: 4.7238 Å
• b: 8.9473 Å
• c: 8.39 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 354.605 ų
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P b n m
• Hall space group symbol: -P 2c 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No