 | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | | Book | | present level of exposure. Even when veins 1008 do occur within or in the proximity of a "granite",... because most postmagmatic hydrothermal deposits do occur in the proximity, in the aureole of igneous...of other alterations, because the largest masses do not continue to depth. A variety of ore showings... multiphase terrains, etc. can do the same and have been found to do so. 28.2.6. The magmatic/metasomatic...literature the rocks produced by alteration (alterites) do not have a status of "independent rocks". In the |  | | Book | | alk., Mg, Fe metasomatic fronts I KYANITE SILLIMANITE 120 in open system, general depletion of most...present level of exposure. Even when veins 1008 do occur within or in the proximity of a "granite",... because most postmagmatic hydrothermal deposits do occur in the proximity, in the aureole of igneous...of other alterations, because the largest masses do not continue to depth. A variety of ore showings... multiphase terrains, etc. can do the same and have been found to do so. 28.2.6. The magmatic/metasomatic |
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