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Almeidaite, Pb(Mn,Y)Zn2(Ti,Fe3+)18O36(O,OH)2, a new crichtonite-group mineral, from Novo Horizonte, Bahia, Brazil

Published online by Cambridge University Press:  02 January 2018

Luiz A. D. Menezes Filho ,
Nikita V. Chukanov ,
Ramiza K. Rastsvetaeva ,
Sergey M. Aksenov ,
Igor V. Pekov ,
Mário L. S. C. Chaves ,
R. Peter Richards ,
Daniel Atencio ,
Paulo R. G. Brandão  and
Ricardo Scholz
...Show all authors
Luiz A. D. Menezes Filho
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Geociências, Avenida Antônio Carlos, 6627, 31270-902, Belo Horizonte, Minas Gerais, Brazil
Nikita V. Chukanov*
Affiliation:
Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia
Ramiza K. Rastsvetaeva
Affiliation:
Institute of Crystallography, Russian Academy of Sciences, Leninskiy Prospekt 59, Moscow, 117333 Russia
Sergey M. Aksenov
Affiliation:
Institute of Crystallography, Russian Academy of Sciences, Leninskiy Prospekt 59, Moscow, 117333 Russia
Igor V. Pekov
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, Moscow, 119991 Russia
Mário L. S. C. Chaves
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Geociências, Avenida Antônio Carlos, 6627, 31270-902, Belo Horizonte, Minas Gerais, Brazil
R. Peter Richards
Affiliation:
Affiliate Scholar, Department of Geology, Oberlin College, Oberlin, Ohio 44074
Daniel Atencio
Affiliation:
Universidade de São Paulo, Instituto de Geociências, Rua do Lago, 562, 05508-080, São Paulo, SP, Brazil
Paulo R. G. Brandão
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Escola de Engenharia, Departamento de Engenharia de Minas, Avenida Antônio Carlos, 6627, 31270-902, Belo Horizonte, Minas Gerais, Brazil
Ricardo Scholz
Affiliation:
Universidade Federal de Ouro Preto (UFOP), Escola de Minas, Departamento de Geologia, Campus Morro do Cruzeiro, 35400-000, Ouro Preto, Minas Gerais, Brazil
Klaus Krambrock
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Exatas, Departamento de Física, Avenida Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
Roberto L. Moreira
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Exatas, Departamento de Física, Avenida Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
Frederico S. Guimarães
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Exatas, Departamento de Física, Avenida Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
Antônio W. Romano
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Geociências, Avenida Antônio Carlos, 6627, 31270-902, Belo Horizonte, Minas Gerais, Brazil
Aba C. Persiano
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Exatas, Departamento de Física, Avenida Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
Luiz C. A. de Oliveira
Affiliation:
Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Exatas, Departamento de Química, Avenida Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
José D. Ardisson
Affiliation:
CNEN/CDTN/SENAN - Laborató rio Aplicada de Física, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
*
*E-mail: [email protected]
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Abstract

Almeidaite (IMA 2013-020), ideally Pb(Mn, Y)Zn2(Ti,Fe3+)18O36(O, OH)2, from Novo Horizonte, Bahia, Brazil, occurs in association with quartz, rutile, anatase, hematite, kaolinite, muscovite, xenotime-(Y) and bastnaesite-(La). Almeidaite forms isolated, black, opaque, sub-metallic, platy crystals flattened on [0001], measuring up to 30 mm 6 30 mm 6 6 mm in size, dominated by the basal pinacoid {0001}, which is bounded by various, mostly steep, rhombohedra and the hexagonal prism {1120}. Most of the crystals are multiply twinned, with non-planar contact surfaces that are approximately parallel to the c axis. The streak is brown. Reflectance values are [(Ro, Re) λ (nm)]: (12.78, 15.39) 470; (12.86, 15.43) 546; (12.91, 15.55) 589; (13.04, 15.75) 650. The empirical formula is (Pb0.59Sr0.12Ca0.04La0.03)Σ0.78(Mn0.54Y0.46)Σ1.00Zn1.43(Ti13.02Fe4.983+)Σ18.00(Fe0.323+Mn0.15)Σ0.47[O37.18(OH)0.82]Σ38.00. It is trigonal, space group R3, with the unit-cell parameters a = 10.4359(2), c = 21.0471(4) Å, V = 1985.10(7) Å3 and Z = 3. The crystal structure was solved (R1 = 0.039) using 2110 unique reflections with I > 3σ(I). Almeidaite is a member of the crichtonite group with Pb dominant in the A site (with 12-fold coordination) and Zn dominant in the T site (with 4-fold coordination). It is a Zn analogue of senaite and a Pb analogue of landauite. The mineral is named after Professor Fernando Flávio Marques de Almeida (1916–2013).

Keywords

almeidaitenew mineralcrichtonite groupcrystal structurechemical compositionNovo HorizonteBahiaBrazil
Type
Research Article
Information
Mineralogical Magazine , Volume 79 , Issue 2 , April 2015 , pp. 269 - 283
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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References

Armbruster, T. and Kunz, M. (1990) Cation arrangement in an unusual uranium-rich senaite crystal structure study at 130 K. European Journal of Mineralogy, 2, 163–170.CrossRefGoogle Scholar
Biagioni, C., Orlandi, P., Pasero, M., Nestola, F. and Bindi, L. (2013) Mapiquiroite, IMA 2013-010. CNMNC Newsletter No. 16, August 2013, page 2703; Mineralogical Magazine, 77, 2695–2709.Google Scholar
Feklichev, V.G. (1989) Diagnostic Constants of Minerals. Nedra, Moscow. Foord, E.E., Sharp, W.N. and Adams, J.W. (1984) Zincand Y-group-bearing senaite from St Peters Dome, and new data on senaite from Dattas, Minas Gerais, Brazil. Mineralogical Magazine, 48, 97–106.Google Scholar
Gatehouse, B.M., Grey, I.E., Campbell, I.H. and Kelly, P.R. (1978) The crystal structure of loveringite-a new member of the crichtonite group. American Mineralogist, 63, 28–36.Google Scholar
Gatehouse, B.M., Grey, I.E. and Kelly, P.R. (1979) The crystal structure of davidite. American Mineralogist, 64, 1010–1017.Google Scholar
Gatehouse, B.M., Grey, I.E. and Smyth, J.R. (1983) Structure refinement of mathiasite, (K0.62Na0.14 Ba0.14Sr0.10)S1.0[Ti12.90Cr3.10Mg1.53Fe2.15Zr0.67Ca0.29 (V,Nb,Al)0.36]S21.0O38. Acta Crystallographica, C39, 421–422.Google Scholar
Grey, I.E. and Gatehouse, B.M. (1978) The crystal structure of landauite, NaMnZn2(Ti,Fe)6Ti12O38. The Canadian Mineralogist, 16, 63–68.Google Scholar
Grey, I.E. and Lloyd, D.J. (1976) Crystal structure of senaite. Acta Crystalographica, B32, 1509–1513.CrossRefGoogle Scholar
Grey, I.E., Lloyd, D.J. and White, J.S. (1976) The structure of crichtonite and its relationship to senaite. American Mineralogist, 61, 1203–1212.Google Scholar
Mantesso-Neto, V., Bartorelli, A., Carneiro, C.D.R. and Brito-Neves, B.B. (2004) Geologia do Continente Sul Americano: Evoluça˜o da Obra de Fernando Flávio Marques de Almeida. Sa˜o Paulo, Beca, 647 pp. Martins, A.A.M., Andrade Filho, E.L.A, Loureiro, H.S.C., Arcanjo, J.B.A. and Guimara˜es, R.V.B. (2008) Geologia da Chapada Diamantina Oriental (Projeto Ibitiara-Rio de Contas)-Série Arquivos Abertos 31. CPRM (Serviço Geológico do Brasil) and CBPM (Companhia Baiana de Pesquisa Mineral), Salvador, Brazil, 64 pp. Menezes Filho, L.A.D., Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Chaves, M.L.S.C., Scholz, R., Atencio, D., Branda˜o, P.R.G., Romano, A.W., de Oliveira, L.C.A., Ardisson, J.D., Krambrock, K., Moreira, R.L., Guimara˜es, F.S., Persiano, A.C. and Richards, R.P. (2013) Almeidaite, IMA 2013-020. CNMNC Newsletter No. 16, 2013, page 2705; Mineralogical Magazine, 77, 2695–2709.Google Scholar
Mills, S.J., Bindi, L., Cadoni, M., Kampf, A.R., Ciriotti, M.E. and Ferraris, G. (2012) Paseroite, PbMn 2+ (Mn 2+ ,Fe 2+ )2(V5+,Ti,Fe3+)18O38, a new member of the crichtonite group. European Journal of Mineralogy, 24, 1061–1067.CrossRefGoogle Scholar
Portnov, A.M., Nikolayeva, L.Y. and Stolyarova, T.I. (1966) A new titanium mineral, landauite. Doklady Akademii Nauk SSSR, 166, 1420–1421. [in Russian].Google Scholar
Orlandi, P., Pasero, M., Duchi, G. and Olmi, F. (1997) Dessauite, (Sr,Pb)(Y,U)(Ti,Fe3+)20O38, a new mineral of the crichtonite group from Buca della Vena mine, Tuscany, Italy. American Mineralogist, 82, 807–811.CrossRefGoogle Scholar
Orlandi, P., Pasero, M., Rotiroti, N., Olmi, F., Demartin, F. and Moe¨lo, Y. (2004) Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy. European Journal of Mineralogy, 16, 171–175.CrossRefGoogle Scholar
Palache, C. (1943) Calcite-an Angle Table and Critical List. Contribution 259 from the Department of Mineralogy and Petrography, Harvard University, Cambridge, Massachusetts, USA, 38 pp. Palatinus, L. and Chapuis, G. (2007) SUPERFLIP-a computer program for the solution of crystal structures by charge flipping in arbitrary dimensions. Journal of Applied Crystallography, 40, 786–790.Google Scholar
Petříček, V., Dušek, M. and Palatinus, L. (2006) Jana2006. Structure Determination Software Programs. Institute of Physics, Prague, Czech Republic. Rastsvetaeva, R.K., Aksenov, S.M., Chukanov, N.V. and Menezes, L.A.D. (2014) The crystal structure of almeidaite, a new mineral of the crichtonite group. Doklady Chemistry, 455, 53–57.Google Scholar
Rouse, R.C. and Peacor, D.R. (1968) The relationship between senaite, magnetoplumbite and davidite. American Mineralogist, 53, 869–879.Google Scholar
Shannon, R. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallographica, A32, 751–767.CrossRefGoogle Scholar
Switzer, G. (1939) Granite pegmatites of the Mount Antero region, Colorado. American Mineralogist, 24, 791–809.Google Scholar
Teixeira, L.R. (2005) Projeto Ibitiara-Rio de Contas, Estado da Bahia. Programa Recursos Minerais do Brasil, Litogeoquímica, CPRM (Serviço Geológico do Brasil) and CBPM (Companhia Baiana de Pesquisa Mineral), Salvador, Brazil, 33 pp. Terpstra, P. and Codd, L.W. (1961) Crystallometry. Longmans, Green and Co., London, 420 pp. Wülser, P.A., Meisser, N., Brugger, J., Schenk, K., Ansermet, S., Bonin, M. and Bussy, F. (2005) Cleusoni t e , (P b , S r)(U4 +,U6 +) (Fe2+,Zn) 2 (Ti,Fe 2+ ,Fe3+)18(O,OH)38, a new mineral species of the crichtonite group from the western Swiss Alps. European Journal of Mineralogy, 17, 933–942.Google Scholar
Zhang, J., Ma, J. and Li, L. (1988) The crystal structure and crystal chemistry of lindsleyite and mathiasite. Geology Reviews, 34, 132–144.Google Scholar