 | | Book | | Jacques P. Cassedanne Universidade Federal do Rio de Janeiro For his valuable participation in research...Angeles American Museum ofNatural History - New York De Beers Consolidated Mines Naturhistorisches Museum...1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds |  | | Journal (issue) | | and Anthony R. Kampf Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine...the northeastern section of the state of Minas Gemis, Brazil. The history of gem exploration and m i n...Te6filo Otoni-Marambaia pegmatite district of Minas Gerais. As is common with most aquamarines, the stones...gem pegmatite regions of the 20th century: Minas Gerais, Brazil. With these articles, we hope to take you...what pegmatite gems have meant historically in Brazil and the production of one very important pegmatite |  | | Book | | source of chromium; without it the corundum and beryl minerals, of which ruby and emerald are special...indicating a carbonaceous material. Emeralds from Brazil are usually full of thin liquid films and there...described some inclusions found more recently in beryl. Beryl of greenish and bluish colours, as well as some...of the cubic system. In a Brazilian colourless beryl, particularly prominent was a large brown mineral...also been noticed in a goshenite (colourless beryl) from Brazil and in the same crystal a manganese apatite | | | Book | | and diamond clip, mounted by Cartier, Paris, 1940, de¬ signed as a flamingo in characteristic pose. From...source of chromium; without it the corundum and beryl minerals, of which ruby and emerald are special...indicating a carbonaceous material. Emeralds from Brazil are usually full of thin liquid films and there...described some inclusions found more recently in beryl. Beryl of greenish and bluish colours, as well as some...of the cubic system. In a Brazilian colourless beryl, particularly prominent was a large brown mineral |
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