New minerals from Brazil: crystal chemistry characterization and synthesis

• Grant number: 09/09125-5
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2009
• End date: September 30, 2011
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Daniel Atencio
• Grantee: Daniel Atencio
• Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

In this project, it is aimed to make the complete description of new minerals from Brazil, in agreement with the rules of the International Mineralogical Association (IMA), with submission of proposals to the IMA Commission on New Minerals, Nomenclature and Classification (CNMNC). The study of minerals described for the first time in Brazil and their paragenesis seeks to increase the current mineralogical knowledge, through researches that involve, also, the determination of crystal structures (resolution by the direct method or refinement by the Rietveld method) and the resolution of mineralogical nomenclature problems. It is still intended to contribute with studies regarding the relationship among these minerals and their associations (assemblages, rocks, genesis, paragenesis). Synthesis experiments will also be made. For execution of this project, samples already collected in several Brazilian occurrences will be used, as well as type-specimens, some already obtained and other to be obtained by exchange with museums, and samples obtained during new field works in Brazilian occurrences. The main new minerals-bearing rocks, already partially studied in previous stages, are granitic pegmatites from several places of Minas Gerais, besides the Cajati carbonatite, in São Paulo. Researches of Scientific Initiation, Technical Training, Master's degree, Doctorship's degree and Post- Doctorship related to the subject of this project should happen. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ANDRADE, MARCELO B.; ATENCIO, DANIEL; CHUKANOV, NIKITA V.; ELLENA, JAVIER. Hydrokenomicrolite, (square,H2O)(2)Ta-2(O,OH)(6)(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. AMERICAN MINERALOGIST, v. 98, n. 2-3, p. 292-296, FEB-MAR 2013. (11/22407-0, 09/09125-5, 08/04984-7)

NESTOLA, FABRIZIO; CAMARA, FERNANDO; CHUKANOV, NIKITA V.; ATENCIO, DANIEL; COUTINHO, JOSE M. V.; CONTREIRA FILHO, REYNALDO R.; FAERBER, GUNNAR. Witzkeite: A new rare nitrate-sulphate mineral from a guano deposit at Punta de Lobos, Chile. AMERICAN MINERALOGIST, v. 97, n. 10, p. 1783-1787, OCT 2012. (09/09125-5)

ANDRADE, MARCELO B.; ATENCIO, DANIEL; MENEZES FILHO, LUIZ A. D.; ELLENA, JAVIER. THE CRYSTAL STRUCTURE OF A MICROLITE-GROUP MINERAL WITH A FORMULA NEAR NaCaTa2O6F FROM THE MORRO REDONDO MINE, CORONEL MURTA, MINAS GERAIS, BRAZIL. CANADIAN MINERALOGIST, v. 49, n. 2, p. 615-621, APR 2011. (09/09125-5, 08/04984-7)

ATENCIO, DANIEL; ANDRADE, MARCELO B.; CHRISTY, ANDREW G.; GIERE, RETO; KARTASHOV, PAVEL M.. THE PYROCHLORE SUPERGROUP OF MINERALS: NOMENCLATURE. CANADIAN MINERALOGIST, v. 48, n. 3, p. 673-698, JUN 2010. (09/09125-5, 08/04984-7)

ATENCIO, DANIEL; CONTREIRA FILHO, REYNALDO R.; MILLS, STUART J.; COUTINHO, JOSE M. V.; HONORATO, SARA B.; AYALA, ALEJANDRO P.; ELLENA, JAVIER; DE ANDRADE, MARCELO B.. Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: Crystal chemistry and Rietveld refinement. AMERICAN MINERALOGIST, v. 96, n. 10, p. 1455-1460, OCT 2011. (09/09125-5, 08/04984-7)

KOLITSCH, U.; ATENCIO, D.; CHUKANOV, N. V.; ZUBKOVA, N. V.; MENEZES FILHO, L. A. D.; COUTINHO, J. M. V.; BIRCH, W. D.; SCHLUTER, J.; POHL, D.; KAMPF, A. R.; et al. Bendadaite, a new iron arsenate mineral of the arthurite group. MINERALOGICAL MAGAZINE, v. 74, n. 3, p. 469-486, JUN 2010. (09/09125-5)

ATENCIO, D.; ROBERTS, A. C.; COOPER, M. A.; MENEZES FILHO, L. A. D.; COUTINHO, J. M. V.; STIRLING, J. A. R.; VENANCE, K. E.; BALL, N. A.; MOFFATT, E.; CHAVES, M. L. S. C.; et al. Carlosbarbosaite, ideally (UO2)(2)Nb2O6(OH)(2)center dot 2H(2)O, a new hydrated uranyl niobate mineral with tunnels from Jaguaracu, Minas Gerais, Brazil: description and crystal structure. MINERALOGICAL MAGAZINE, v. 76, n. 1, p. 75-90, FEB 2012. (09/09125-5)