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Hydrokenomicrolite, (□,H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil
(Mineralogical Society of AmericaChantilly, 2013-02)
Hydrokenomicrolite, (□,H2O)2Ta2(O,OH)6(H2O) or ideally □2Ta2[O4(OH)2](H2O), is a new microlite-group mineral approved by the CNMNC (IMA 2011-103). It occurs as an accessory mineral in the Volta Grande pegmatite, Nazareno, ...
Fluorcalciomicrolite, (Ca,Na,□)2Ta2O6F, a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil
(Mineralogical SocietyTwickenham, 2013-10)
Fluorcalciomicrolite, (Ca,Na,□)2Ta2O6F, is a new microlite-group, pyrochlore supergroup mineral approved by the CNMNC (IMA 2012-036). It occurs as an accessory mineral in the Volta Grande pegmatite, Nazareno, Minas Gerais, ...
Estudo cristaloquímico de minerais de nióbio e tântalo: desordem e mudança de simetria cristalográfica em ixiolita do pegmatito de Volta Grande-MG
(Universidade Federal de Minas GeraisUFMG, 2014-03-10)
The context of production and use of niobium and is very strategic for Brazil, because its used by all developed economies and our country concentrates approximately 97 % of all known reserves of this mineral on the planet. ...
Caracterização e classificação de maciços rochosos da mina de Volta Grande, Nazareno, Minas GeraisRock mass classification applied to Volta Grande underground mine site, Nazareno, Minas Gerais
(Universidade Federal de ViçosaBRGeotecnia; Saneamento ambientalMestrado em Engenharia CivilUFV, 2015)