Information card for entry 9017461

Structure parameters

• Mineral name: Almeidaite
• Formula: Fe4.9 H0.82 Mn0.8 O38 Pb0.6 Sr0.1 Ti13.4 Y0.4 Zn1.5
• Calculated formula: Fe4.8998 H0.82 Mn0.7998 O38 Pb0.6 Sr0.1 Ti13.3998 Y0.4 Zn1.5
• Title of publication: Crystal structure of almeidaite, a new mineral of the crichtonite group
• Authors of publication: Kastsvetaeva, R. K.; Aksenov, S. M.; Chukanov, N. V.; Menezes, L. A. D.
• Journal of publication: Doklady Chemistry
• Year of publication: 2014
• Journal volume: 455
• Pages of publication: 53 - 57
• a: 10.4359 Å
• b: 10.4359 Å
• c: 21.0471 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1985.1 ų
• Number of distinct elements: 9
• Space group number: 148
• Hermann-Mauguin space group symbol: R -3 :H
• Hall space group symbol: -R 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No