Brazilian mineralogy: characterization of new and rare mineral species

• Grant number: 19/23498-0
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2020
• End date: June 30, 2023
• 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
• Associated researchers: Andrezza de Almeida Azzi ; Marcelo Barbosa de Andrade

Abstract

This project represents the continuation of the work that is already being successfully developed, the study of new and rare minerals from Brazil, to increase the current mineralogical knowledge through research including crystal structure determination and solution of mineralogical nomenclature problems. Studies regarding the relationship among these minerals and their associations (assemblages, rocks, genesis, paragenesis) will also be developed. The complete description of new minerals from Brazil, in agreement with the rules of the Commission on New Minerals, Nomenclature and Classification (CNMNC) of the International Mineralogical Association (IMA) will be done, with submission of nomenclature proposals. For execution of this project, samples already collected in several Brazilian occurrences will be used, and samples obtained during new field works in Brazilian occurrences. Among the many samples already collected are those of several pegmatites from Minas Gerais, from the alkaline massif of Poços de Caldas, Minas Gerais, from the carbonatites of Cajati in São Paulo and Araxá in Minas Gerais. From a pegmatite in Conselheiro Pena, Minas Gerais, a new mineral was already discovered and is in study. From Poços de Caldas, where the new minerals manganoeudialyte and fluorlamprophyllite have recently been described, at least four new minerals have now been identified and are also being studied. All the five type minerals from São Paulo state were discovered in Cajati: zirkelite, quintinita, menezesita, pauloabibita and melcherita. Researches of Scientific Initiation, Master's degree, Doctorship's degree and Post-Doctorship related to the subject of this project will be implemented. (AU)

Scientific publications

(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)

ATENCIO, DANIEL. Pyrochlore-Supergroup Minerals Nomenclature: An Update. FRONTIERS IN CHEMISTRY, v. 9, SEP 6 2021. (19/23498-0)

ATENCIO, DANIEL; AZZI, ANDREZZA DE ALMEIDA. Cerite: a new supergroup of minerals and cerite-(La) renamed ferricerite-(La). MINERALOGICAL MAGAZINE, v. 84, n. 6, p. 928-931, DEC 2020. (17/25426-1, 19/23498-0, 14/50819-9, 15/26689-0)

LOPES, GERSON A. C.; ATENCIO, DANIEL; ELLENA, JAVIER; ANDRADE, MARCELO B.. Romeite-Group Minerals Review: New Crystal Chemical and Raman Data of Fluorcalcioromeite and Hydroxycalcioromeite. MINERALS, v. 11, n. 12, DEC 2021. (19/23498-0, 13/03487-8)