Information card for entry 9002765

Structure parameters

• Mineral name: Ilvaite
• Formula: Ca0.98 Fe2.28 Mn0.74 O9 Si2
• Calculated formula: Ca0.98 Fe2.28 Mn0.74 O9 Si2
• Title of publication: Structural properties and heat-induced oxidation-dehydrogenation of manganoan ilvaite from perda Niedda mine, Sardinia, Italy Sample: PN6-690, Crystal at room temperature, annealed at 690 C for 48 hrs
• Authors of publication: Bonazzi, P.; Bindi, L.
• Journal of publication: American Mineralogist
• Year of publication: 2002
• Journal volume: 87
• Pages of publication: 845 - 852
• a: 13.015 Å
• b: 8.873 Å
• c: 5.816 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 671.644 ų
• Sample thermal history: annealed at 690 C for 48 hrs
• Number of distinct elements: 5
• Space group number: 62
• Hermann-Mauguin space group symbol: P n a m
• Hall space group symbol: -P 2c 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No