Information card for entry 9017697

Structure parameters

• Mineral name: Almeidaite
• Formula: Ca0.04 Fe4.88 H0.8 La0.03 Mn0.72 O38 Pb0.59 Sr0.12 Ti13.44 Y0.46 Zn1.44
• Calculated formula: Ca0.04 Fe4.88 H0.8 La0.03 Mn0.72 O38 Pb0.59 Sr0.12 Ti13.44 Y0.46 Zn1.44
• Title of publication: Almeidaite, Pb(Mn,Y)Zn2(Ti,Fe3+)18O36(O,OH)2, a new crichtonite-group mineral, from Novo Horizonte, Bahia, Brazil
• Authors of publication: Menezes, L. A. D.; Chukanov, N. V.; Rastsvetaeva, R. K.; Aksenov, S. M.; Pekov, I. V.; Chaves, M. L. S. C.; Richards, R. P.; Atencio, D.; Brandao, P. R. G.; Scholz, R.; Krambrock, K.; Moreira, R. L.; Guimaraes, F. S.; Romano, A. W.; Persiano, A. C.; de Oliveira, L. C. A.; Ardisson, J. D.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2015
• Journal volume: 79
• Pages of publication: 269 - 283
• 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: 11
• 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