 | | 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,...the Cruzeiro tourmaline and mica mine and the Jacobina amethyst mine. He owns several other mines as well |  | | 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...NATIONAL MUSEUM IN SOFIA 66 OTHER COLLECTIONS OF MINE IN BULGARIA 71 COLLECTIONS IN OTHER CITIES AROUND |  | | Journal (article/letter/editorial) | | DETERMINATeION OF QUARTZ PEGMATITES IN VEINS AND BRAZIL. DJALMA GUIMAR•ES. CRITICAL ASPECTS OF AGE...quartz deposits.in the quartz-producingareas of Brazil. They have found that in the northeasternand m...as well as someof the depositsin the State of Minas Gerais,occurin Algonkian and Silurian (Bambui Series)...paper. 100 AGE DETERMINATION OF QUARTZ VEINS IN BRAZIL. 101 This distribution appears to indicate a...the less deeply buried quartz veins of Central Minas Gerais, Bahia and Southern Goyaz, which occur in upper |  | Kesler, Stephen E., Gruber, Paul W., Medina, Pablo A., Keoleian, Gregory A., Everson, Mark P., Wallington, Timothy J. (2012) Global lithium resources: Relative importance of pegmatite, brine and other deposits. Ore Geology Reviews, 48. 55-69 doi:10.1016/j.oregeorev.2012.05.006 | Journal (article/letter/editorial) | | solutions, including the large Jadar (Serbia) and King Valley (USA) deposits, have estimated resources of about...2010; Ober, 2006). The minerals, principally spodumene (LiAlSi2O6) and petalite (LiAlSi4O10), are used...that produce more than one metal (Norton, 1977). Spodumene is the most important lithium mineral in pegmatites...1976). Their average modal composition is 20% spodumene, 32% quartz, 41% feldspar and 6% muscovite, with...batholith in the Black Hills of South Dakota. Spodumene is the dominant lithium mineral here as well, |  | | Journal (article/letter/editorial) | | BEISPIEL DES PEGMATITDISTRIKTS VON ARA‚UAI (MINAS GERAIS) von G. Morteani & C. Preinfalk Lehrstuhl fŸr...die šstliche Pegmatitprovinz in den Staaten Minas Gerais und SŸdbahia. Sie wurde als solche von PAIVA...K/Ar-Altersbestimmungen an Muskoviten aus den Pegmatiten von Cachoeira und Maxixe im Gebiet von Ara•ua’ ergeben ein Brasiliano...Pegmatite von Barreiro I und II, Xuxa, Maxixe und Cachoeira werden wegen ihres ungewšhnlich hohen Spodumengehaltes...ãDepartamento de Geoci•ncias der Universidade Federal de Minas GeraisÒ in Belo Horizonte hat. Wir danken Herrn |  | | Report (volume) | | Deposits in Minas Gerais Brazil GEOLOGICAL SURVEY BULLETIN 964-C Mica Deposits in Minas Gerais Brazil...M. BARBOSA and RESK FRAYHA, DIVISSO DE FOMENTO, BRAZIL GEOLOGIC INVESTIGATIONS IN THE AMERICAN REPUBLICS...da Produgao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...__________-___---_____---_-________ Exports of sheet mica from Brazil, 1900-1945-___-__-_______----______ General statement...___________________ Mica-mining industry in Minas Gerais.______________________________ General stat |  | | 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) | | SIX APRIL 1993 Cover Picture The Hematita mine in Minas Gérais in 1987 - probably the richest alexandrite...foreground, the soil profile in the centre and the valley confluence in the background. (See 'The location...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...to be able to deterAlthough it is very important mine if if a gem is natural or synthetic, and treated...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil JacquesCassedanne, Cassedanne, D.Sc.,* Maurice |  | | Journal (issue) | | Moore Recent discoveries of hydroxylherderite in Minas Gerais ..............................................typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in |  | | Journal (issue) | | Foote also made several collecting visits to the mine in 1890-1891, and brought back many good specimens...chemist and physicist). In 1895 Niven purchased the mine from its owner, on behalf of Thomas Edison. In the...dozen mines were opened, one of which (the Mariposa mine) produced a wider variety of mercury minerals than...Morgenstern photo. Calcite, 5.8 cm, from the Mariposa mine, Terlingua; Roh Lavinsky (The Arkenstone) specimen...Calomel crystals on terlinguaite, 3 mm, Mariposa mine, Terlingua. Celestine, 4.5 cm, Burnet, Burnet County; |  | | Journal (issue) | | ............... 93 by A. Falster The Rock Candy mine, British Columbia ................................COVER: ELBAITE on albite, from the Jonas mine, Minas Gerais, Brazil. Keith Proctor specimen; photo by Harold...Rio de Janeiro, Brazil INTRODUCTION Recently, a small pegmatite body in Minas Gerais has produced magnificent...are new to Brazil and very good specimens are still recoverable from the dumps or in the mine work ings...east-southeast from Governador Valadares, near the Rio Doce Valley and to the west of the famous Urucum pegmatite |  | | Report (volume) | | Pernambuco, Recife, Brazil J. S. BETTENCOURT Universidade de Sao Paulo, Brazil C. P. DE CAMPOS Lud...FERREIRA Federal University of Pernambuco, Recife, Brazil 2011 Published by The Geological Society London...(Iran), Asia (Japan and China) and South America (Brazil and Argentina) and spanning rocks from Palaeoproterozoic...–Cambrian granitic magmatism in the Araçuaı́ orogen (Brazil), the Eastern Brazilian Pegmatite Province and...7852, Cidade Universitaria, 50670-000 Recife, PE, Brazil 2 Institute of Geosciences, University of São |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | 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...1979) Green: unstable Mn4 due to irradiation Spodumene (Cohen and Janezic, 1983) Yellow: color center |  | | Journal (article/letter/editorial) | | the beryl-tantalite pegmatites of northeastern Brazil. These pegmatites have been described in some detail...MURDOCH areas: the Picui-Parelhas, Quixeramobin-Cachoeira and CascavelCristais regions, the first two of...tons in weight. Most of the beryl, tantalite and spodumene occur here, as do also the primary phosphates...later solutions or by weathering processes,but spodumene may show extensive kaolinization, and in some...pegmatites are lithium-bearing, with Iepidolite or spodumene, or both, appearing in considerable amount. Here |  | | Journal (article/letter/editorial) | | rare element enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral...rare element enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral...viable deposits of metal-bearing minerals. Albite-spodumene pegmatites, which represent important resources...Ireland, weakly zoned to homogeneous albitised spodumene pegmatites and their wallrocks were studied to...incompatible elements B, Li, Rb, Cs and F in spodumene pegmatite exocontacts in both country rock types |  | | Journal (article/letter/editorial) | | pegmatite), gem sites (e.g. Governador Valadares, Brazil, Be-B-aquamarinetourmaline pegmatite), deposits...pegmatite itself: tabular unzoned Nb-Be-Li pegmatite (spodumene > Li mica). It may be supplemented in a way like...gneiss-hosted tabular unzoned Nb-Be-Li pegmatite (spodumene > Li mica). In case of a poor database the same...pegmatite (amblygonite) and Li-Nb pegmatite (spodumene), is an optional use to distinguish between eschweizerbart_xxx...(Nb/Ta-Bi-P-Be)-Li quartz-mica-albite pegmatite (spodumene), using the long version of the CMS classification |  | | Book | | Deviations 371 Bolivia, 377 332 Proportions Brazil, 378 Angles of Faceted Bulgaria, 399 333 Burma... Cajon, Schmetzer, Heidelberg, De Janeiro, Brazil; Geological ton, VA; seum, Marie and Germany;...north of Thebes. No emeralds exist the emerald mine through stones. Qift as as other mineral, ...date of 1000 of Brazil. by the aborigines 40 Kunz inch (25 Indians of Brazil. these minerals In...pre-Columbian sites of Code, grave tematically of Brazil. labret made from a Colombian emeralds countries |  | | Journal (issue) | | Ebert The Cap50 Topaz Deposit, Ouro Preto, Minas Gerais, Brazil 12 Peter C. Keller 21 Harry Winston:...11 THE CAPAO TOPAZ DEPOSIT, OUR0 PRETO, MINAS GERAIS, BRAZIL By Peter C. Keller For over 200 years, the...corner of the state of Minas Gerais, Brazil. Once the capital of Minas Gerais, it is only 97 lzm by car...impossible without the complete cooperation of the Capao mine owners, Wagner Colomboroli, Fernando Cello Gon~alves...west of the colonial city of Ouro Preto, in Minas Gerais, Brazil [figure 2). Today there are at least a dozen |  | | Journal (issue) | | Diego County. He attended high school in Spring Valley, California, and in 1942 received a Bachelor of...cat's-eyes Treated jadeite bead necklace Emeralds from Brazil Famous diamond Pink conch pearl Color-change sapphire...Maxixe beryl, a material first found in 1917 in Brazil that faded on exposure to sunlight (also see Nassau...synthetic amethyst on the basis of the presence of Brazil-law twinning in the former (figure 16). While this...phantom quartz locality near Buenopolis, Minas Gerais, Brazil. The specimen was obtained from Kevin Lane |  | | Journal (article/letter/editorial) | | lepidolite; for the second, zinnwaldite; for the third, spodumene. These three objects have totally given only a...Additionally, they are known in the Aracuai (Cachoeira), Iberian (Sepeda), Altai (Koktogai), and Tuva-Mongol...Part 1 2019 35 Basin and Range province (Kings Valley and La Ventana–El Sauz) and one jadarite object...criteria established in this work: the Yichun producing mine in the South China belt contains the largest known |  | | Journal (issue) | | the CapelinhaMalacacheta Area (State of Minas Gerais, Brazil)................................................... 247 WULFENITE—from level 4 of the 79 mine, Gila County, Arizona. The specimen was collected...Selection of Superb Gem Minerals recently acquired in Brazil. Also the Finest Dark Blue-Green Amazonite Groups...their help, and their country, where a change in mine ownership has also response has been wonderful....Individuals who have con sometimes meant a change in mine name. How many sented to serve as members of this |  | | Journal (article/letter/editorial) | | Sphene Spherocobaltite Spinel-group minerals Spodumene-hiddenite-kunzite Stannite Staurolite Stavelotite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet | | | Journal (article/letter/editorial) | | Sphene Spherocobaltite Spinel-group minerals Spodumene-hiddenite-kunzite Stannite Staurolite Stavelotite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet |
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Cachoeira mine, Piauí valley, Taquaral, Itinga, Minas Gerais, Brazil