 | Beurlen, H., Barreto, S. B., Silva, D., Wirth, R., Olivier, P. (2007) TITANIAN IXIOLITE - NIOBIAN RUTILE INTERGROWTHS FROM THE BORBOREMA PEGMATITIC PROVINCE, NORTHEASTERN BRAZIL. The Canadian Mineralogist, 45 (6) 1367-1387 doi:10.3749/canmin.45.6.1367 | Journal (article/letter/editorial) | | THE BORBOREMA PEGMATITIC PROVINCE, NORTHEASTERN BRAZIL Hartmut BEURLEN§ Programa de PG em Geociências...Hélio Ramos s.n., 50740–530 Recife, Pernambuco, Brazil Sandra Brito BARRETO Deptamento de Geologia, Universidade...Hélio Ramos s.n., 50740–530, Recife, Pernambuco, Brazil Dailto SILVA Instituto de Geociências, IGE–UNICAMP...Barão Geraldo, 13083–970 Campinas, São Paulo State, Brazil Richard WIRTH GeoForschungsZentrum Potsdam, Telegrafenberg...Hélio Ramos s.n., 50740–530, Recife, Pernambuco, Brazil Abstract Intergrowths of orthorhombic and tetragonal |  | Goodenough, K.M., Lusty, P.A.J., Roberts, N.M.W., Key, R.M., Garba, A. (2014) Post-collisional Pan-African granitoids and rare metal pegmatites in western Nigeria: Age, petrogenesis, and the ‘pegmatite conundrum’. Lithos, 200. 22-34 doi:10.1016/j.lithos.2014.04.006 | Journal (article/letter/editorial) | | Benin and Ghana, and into the Borborema Province of Brazil. This belt is characterised by voluminous post-collisional...connected to the Borborema Province of north-east Brazil (Arthaud et al., 2008; Caby, 1989; Castaing et...similar shear zones in the Borborema Province in Brazil (Caby, 1989; Ferré et al., 2002). Neoproterozoic...accessory minerals including columbite–tantalite, tapiolite, wodginite, microlite, ilmenite and cassiterite...thus remains uncertain. The Borborema Province in Brazil also contains rare-metal pegmatites emplaced at |  | | Report (issue) | | rare-earth elements, and antimony in China; niobium in Brazil; and platinum-group elements in South Africa and...chart showing niobium resources and reserves in Brazil, Canada, and the United States...................industrialization in large developing countries, such as Brazil, China, and India. In addition, the development...cobalt (Democratic Republic of the Congo), niobium (Brazil), and platinum (South Africa), are also considered...alkalineultramafic Barreiro complex in Minas Gerais, Brazil, is capped by a 150- to 230-meter-thick regolith |  | | Journal (volume) | | Emeralds from the Piteiras mine, Minas Gerais State, Brazil: genetic implications from fluid inclusion studies...in Itabira is located in the Minas Gerais State, Brazil and produces gem quality emeralds. Ultramafic rocks...property. “Gem-quality” alexandrite specimens from Brazil, India, Madagascar, Russia, Sri Lanka, and Tanzania...sources. Alexandrite samples from the Hematita mines (Brazil) have typically high Sn (up to 2294 ppm) concentrations...showing LA-ICP-MS data [ppm] for alexandrites from Brazil (BZ), Madagascar (MAD), Russia, Sri Lanka, and |
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