Information card for entry 9000219

Structure parameters

• Mineral name: Aenigmatite
• Formula: Fe5.16 Na2 O20 Si5.74 Ti1.1
• Calculated formula: Fe5.16 Na2 O20 Si5.74 Ti1.1
• Title of publication: The crystal structure of aenigmatite sample FRO
• Authors of publication: Cannillo, E.; Mazzi, F.; Fang, J. H.; Robinson, P. D.; Ohya, Y.
• Journal of publication: American Mineralogist
• Year of publication: 1971
• Journal volume: 56
• Pages of publication: 427 - 446
• a: 10.406 Å
• b: 10.813 Å
• c: 8.926 Å
• α: 104.93°
• β: 96.87°
• γ: 125.32°
• Cell volume: 744.464 ų
• Number of distinct elements: 5
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No