 | | Journal (article/letter/editorial) | | The EBPP is situated mainly in the State of Minas Gerais, but encompasses also parts of the States of... aquamarine, morganite, and contain abundant spodumene, tantalite and columbite. In contrast, the Espera...Universidade Federal de Minas Gerais, Av. AntoÃnio Carlos 6277, 31 000 Belo Horizonte MG, Brazil the context of...Argentina, (2) the north-eastern or Borborema in Brazil, and (3) the Eastern Brazilian. A description of...pegmatites of the north-eastern Pegmatite Province of Brazil and their geochemistry have been studied by Beurlen |  | | Book | | 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...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...Century. The book is a showcase ofthe best from Brazil and it makes a handsome evocation of what is beautiful |  | | 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 | | until he managed to reach the land of his dreams, Brazil. A specialist in the field of geology and mineralogy...crystals and the remarkable mineral treasures of Brazil, as well as the incredible adventures and difficulties...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL Cyan Magenta Yellow Black 1 Delev Ilia Deleff...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL SOFIA–MOSCOW 2004 3 Cyan Magenta Yellow Black...MINERAL TREASURES OF BRAZIL 76 85 AN OUTLINE OF THE MINERAL RESOURCES OF BRAZIL ORIGIN OF GIANT CRYSTALS |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (issue) | | Articles 708 Coloured Stone Mining and Trade in Brazil: A Brief History and Current Status By Aurélien...Collection V. L. Villani photo p. 758 Cover Photo: Brazil is the source of a variety of coloured stones,...Junior (BC Gemas do Brasil, Governador Valadares, Brazil), and heating to 500°C in air was successful in...it is likely to have been Rio Grande do Sul in Brazil, well known for its amethyst, agate and jasper...Trade in Brazil: A Brief History and Current Status Aurélien Reys Coloured stones from Brazil have been |  | | Journal (issue) | | Alexandrite from the Pegmatite Districts of Minas Gerais, Brazil Keith Proctor 33 Faceting Large Gemstones...alexandrites near the town of Hematita in Minas Gerais, Brazil; in less than three months in 1987, more...aquamarine, like the material from Coronel Murta (Brazil) and Tongafeno (Malagasy Republic). As we have...beryl originally found at the Maxixe mine in Minas Gerais, Brazil, is colored by a similar but different defect...1979) Green: unstable Mn4 due to irradiation Spodumene (Cohen and Janezic, 1983) Yellow: color center |  | | Journal (issue) | | agate nodule showing alternate red and white bands (Brazil). Below: Agate pebbles from a river in Peru. Agate...have been discovered in the last hundred years in Brazil and Uruguay. Other plentiful deposits of agate...found in small quantities in Sri Lanka, Burma and Brazil. Alexandrite's unique colour-changing phenomenon...like this have been found in Sri Lanka, Burma and Brazil. There is no other natural gem that resembles alexandrite...deposits of almandine garnet are found in Australia, Brazil, India, Madagascar, Sri Lanka and Tanzania. The |  | | Book (edition) | | Quartz • • • Danburite Jadeite • • • Axinite ... Spodumene Kyanite Idocrase Cassiterite Olivine ... •••...• • • Enstatite ... Sillimanite Apatite • • • Spodumene ••• ••• ••• ••• ••• •• • ••• ••• •••...transparent ; quartz, topa9 feldspar, diopside, and spodumene are translucent; turquoise, tourmaline, chrysolite... OPTICAL PROPERTIES DOUBLY REFRACTING STONES Spodumene Phenakite • • • Enstatite • • • Euclase • •• Jadeite...green .. . deep green .. . reddish- brown • •• Spodumene: Kunzite pale pink to colourless purple to pink |  | | Book (edition) | | the specimens in the case; a black diamond from Brazil i s also exhibited. Various shades of yellow are...Sierra Leone, Botswana, Tanzania, Ivory Coast, Brazil and Venezuela are also important producers, whilst...the only source until diamonds were discovered in Brazil in 1 725. The mines in India were at one time very...Jn Brazil diamonds are found over a wide area, the two most productive states being Minas Gerais and...characteristic of the region. The richest mines in Minas Gcrais arc situated i n the Diamantina district |  | | Book (edition) | | JADE (Nephrite or Greenstone, Jadeite) XXXIV. SPODUMENE (Kunzite, Hiddenite], BENITOITE XXXV. . ...(one-sixth natural size), FOUND AT MARAMBAYA, MINAS GERAES, BRAZIL .196 XXVII. GEM-STONES (in colour) .226...however, themselves not at GEM-STONES 12 right Spodumene angles. (kunzite) and some moonstone crystallize...only moonstone, quartz, beryl, tourmaline, and spodumene; opal and turquoise, being amorphous and more...discovery, Small 1725, of the precious stone in Brazil. detected by the miners in the gold washings at |  | | Book | | (South Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia (Russia). C Colour: colourless...include Val Malenco and Vesuvius (Italy), Bagagem (Brazil), Kaiserstuhl (Ge.rmany) and Quebec (Canada). ...Other deposits are in Connecticut (USA), Minas Gerais (Brazil), Smilovne (Bulgaria) and Victoria Range...the Urals' Takowaja River. Alluvial deposits in Brazil and Sri Lanka produce cat's eye. Fine transparent...yellow-green crystals occur at Espirito Santo (Brazil). C Colour: colourless, grey, brown, green, | | | Book | | (South Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia (Russia). C Colour: colourless...include Val Malenco and Vesuvius (Italy), Bagagem (Brazil), Kaiserstuhl (Ge.r many) and Quebec (Canada)....Other deposits are in Connecticut (USA), Minas Gerais (Brazil), Smilovne (Bulgaria) and Victoria Range...the Urals' Takowaja River. Alluvial deposits in Brazil and Sri Lanka produce cat's eye. Fine transparent...yellow-green crystals occur at Espirito Santo (Brazil). C Colour: colourless, grey, brown, green, |  | | Book (edition) | | JADE (Nephrite or Greenstone, Jadeite] XXXIV. SPODUMENE (Kunzite, BENITOITE . . Hiddenite\ . 249...(one-sixth FOUND AT MARAMBAYA, natural size), MINAS GERAES, BRAZIL .196 .226 XXVII. GEM-STONES (in colour)...themselves not at 1 GEM-STONES 2 right angles. Spodumene and (kunzite) some moonstone crystallize...only moonstone, quartz, beryl, tourmaline, and spodumene; opal and turquoise, being amorphous and more...1725, of the stones were Small precious stone in Brazil. detected by the miners in the gold washings at |  | | Journal (issue) | | APRIL 1993 Cover Picture The Hematita mine in Minas Gérais in 1987 - probably the richest alexandrite...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil JacquesCassedanne, Cassedanne, D.Sc.,* Maurice...Fundiio, Fundão, 21,910, Rio de Janeiro, Janeiro, Brazil *Institute of Geosciences UFRJ-CNPq, Cidade Universitaria...Ipanema, 22,410, 22,410, Rio de Janeiro, Janeiro, Brazil **Maurice Roditi Jewellers, distinguished: Abstract |  | | Journal (issue) | | Crystal 25x 17x 17mm. J& 60/13411. Agate (onyx) ?Brazil]. 6x 5 CM.N2 636/3292. Hofmann collection. All...Hungary, the Harz, Italy, Tirol, Saxony, Switzerland, Brazil, North America, Sitka Island, and Manila (Philippines)...— xis up to 2 mm; n e w minerals — 9 species: spodumene; deposit is famous by many m ic roc rystal specimens...Buena; Huallapon 104- Huanzala 105- Cerro de Pasco; Minas Ragra; M orccocha 106- Huancavelica 107- Corocoro...specimen. Photo: N. Pekova. 6. Euclase. Minas Gerais, Brazil. Crystal 8 mm tall. 1.V.& N . Pekov specimen | | | Book (edition) | | Greenstone^ Jadeite) IOLITE, Hiddenite), {Kunzite, Spodumene XXXIV. Benitoite Euclase, Phenakite, Beryllonite...(one-sixth natural size), Found at Marambaya, Minas Geraes, Brazil .196 XXVII. Gem-Stones (in colour) .226...however, themselves not at GEM-STONES 12 right Spodumene angles. moonstone Crystals belonging refractive...only moonstone, quartz, beryl, tourmaline, and spodumene; opal and turquoise, being amorphous and more...for precious stone in detected by the miners Brazil. in the Small gold washings at Tejuco, about |  | | Journal (issue) | | Santa Maria mine, Brazil; (2) 20.10-ct peridot, Burma; (3) 21.09-ct kunzite, Brazil; (4) 8.14-ct grossular... California; (6) 15.18-ct tourmaline, Paraiba, Brazil; (7) 10.42-ct tanzanite, Tanzania; (8) 6.09-ct...38-ct ruby, Burma; (17) 3.08ct tourmaline, Paraiba, Brazil; (18) 1.85-ct fancy purple-pink diamond, Argyle...number of new localities. Fine alexandrites from Brazil, sapphires from Southeast Asia and Australia, emeralds...pegmatite gemstones (tourmaline, aquamarine, etc.) from Brazil, Pakistan, Afghanistan, and several countries in |  | | Journal (issue) | | Triscori & T. /. Campbell The Urucum pegmatite, Minas Gerais, Brazil...........................................8 cm, with muscovite from Corrego Frio, Minas Gerais, Brazil. Sams collection; Van Pelt photo. Figure...crystals to 14 cm, from Virgem da Lapa, Minas Gerais, Brazil. Sams collection; Van Pelt photo. The Mineralogical...Several years later, in 1942, a mineral was found in Brazil having the composition ((Na2)(Fe+2,Mn+2)5(P 0 4)4...and cabinet specimens from classic localities, Brazil and China. Inquire about the collection of old |  | | Book (edition) | | transparent; quartz, topaz, felspa1·, diopside, and spodumene are translucent; turquois, tourmaline, ch rysolite...... Axinite ••• ••• Ph~nacite •• • • •• •• • Spodumene ••• •• • ••• Euclase ... ••• ••• ••• Andalusite...the specimens in the case ; a black diamond from Brazil is also exhibited. Various shades of yellow are...best known localities for diamonds a1. e India, Brazil, and South Africa; Borneo, British Guiana, Australia...wide area, the two mo. t productive states being Minas Geraes and Bahia. The stones occur in a deposit |  | | Book | | historical diamonds from India (Golconda), Brazil (Diamantina, Minas Gerais), Congo. Angola and I ,.,mibia were...from Sudbury, Ontario, Canada and Morro Velho, Brazil. Its large accumulations are important Cu ore ...up to 90 mm (3•/,. in) found 10 Virgcrn da Lapa. Brazil Tabular crystals up to 40 mm ( 1• u in) across...cm were found in pegmatites in Jaguara9u, Minas Gerais, Brazil. Crystals up to 20 cm (7 7/a in) in size...Africa 79 Ch1ysobe1J•I, 35 mm, Espirito Santo, Brazil Chryzoberyl BeAl2O4 ORTHORHOMBIC ••• varieties: |  | | Journal (issue) | | the CapelinhaMalacacheta Area (State of Minas Gerais, Brazil)..........................................Selection of Superb Gem Minerals recently acquired in Brazil. Also the Finest Dark Blue-Green Amazonite Groups...mineral samples such as: beryl, tourmaline, topaz, spodumene, amblygonite, brazilianite, and garnet, derived...the NNW of Capelinha. Access is by way of the Minas Novas road for 7 km, then by the Sac) Caetano 224 ...Mineralogical Record IM G LOCAL!TES \rea (State of Minas Gerais, Brazil) Jeannine 0. OTopazio te-TxQTONI roJ ^ |  | | Book (edition) | | Odontolite, XXXIII. Jade (Nephrite XXXIV. Spodumene or Benitoite . . Variscite . Hiddenite... XXV. Cullinan Diamond (natural size) natural Minas Found size), colour) Opal Mines, Wales XXIX...Cliffs, (in colour) . Marambaya, at Geraes, Brazil XXVII. Gem-Stones (in XXVIII. Crystal Aquamarine... GEM-STONES 12 right angles. moonstone Spodumene Crystals belonging refractive and alone is...only moonstone, quartz, beryl, tourmaline, and spodumene; and in more less lest liquids, and opal |  | | Book (volume) | | Topaz and Tourmaline 7 Zircon, Peridot and Spodumene 8 The Garnets 9 Moonstone and Other Feldspar...gem minerals found in the Minas Gerais and Minas Novas districts of Brazil. Other types of rocks provide...provide other gem minerals, including diamond, in Brazil. Many smaller, or less important, gem belts could...has left the mine, it is dead. BRAZIL The discovery of diamonds in Brazil occurred at a place now called... Il Diamond Crystal in rock and cut stones BRAZIL the bandeirantes, when panning for gold along |  | | Journal (issue) | | a n d Peter C. Keller Gem Pegmatites of Minas Gerais, Brazil: The Tourmalines of the Governador Valadares...Summer 1985 85 GEM P E G m T I T E S OF MINAS G E M S , BRAZIL: THE T O U R W L I N E S OF THE G O V E...around the city of Araquai, i n northeastern Minas Gerais, and discussed 20 important mines in that area...tourmaline mines i n s o ~ ~ ~ h e a s t eMinas rn Gerais, in the broad area surrounding the gemstone capital...Institute of America 86 Gem Pegmatites of Minas Gerais A lthough hundreds of mines in the broad region |
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Minas Novas, Minas Gerais, Brazil