Information card for entry 9016293

Structure parameters

• Mineral name: Tapiolite-(Fe)
• Formula: Fe0.999 Nb0.13 O6 Ta1.871
• Calculated formula: Fe1.998 Nb0.26 O12 Ta3.742
• Title of publication: Structural changes induced by cation ordering in ferrotapiolite Note: Crystal Kim20_q1, treated at 600 C for 5 min
• Authors of publication: Zema, M.; Tarantino, S. C.; Giorgiani, A.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2006
• Journal volume: 70
• Pages of publication: 319 - 328
• a: 4.7547 Å
• b: 4.7547 Å
• c: 9.2893 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 210.005 ų
• Number of distinct elements: 4
• Space group number: 136
• Hermann-Mauguin space group symbol: P 42/m n m
• Hall space group symbol: -P 4n 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No