 | | Journal (article/letter/editorial) | | samplesare from the Quadiil6tero Ferifero of Minas Gerais, divided as follor'vs:4 from phyllites, 4 from...Bahia and 4 from high-metamorphic-grade areas in Minas Gerais were also analYzed. Associateclrvith the kyanite...kyanite in the phyllite is quartz and muscovite, r,vith or without chlorite, chloritoid, ancl pyrophyllite...is associated u'ith quartz I'ith or $.ithout muscovite and pyrophyllite, and may represent a "recrystallization...area of the central part of the State of Minas Gerais, Brazil, where it is the only AtzSiOspolymorph found |  | | Journal (issue) | | epidote deposits of the Capelinha Region, Minas Gerais, Brazil ......................................315...epidote on matrix, 4.4 cm, from Capelinha, Minas Gerais, Brazil. Gail and Jim Spann collection; Tom Spann...w. FineMineral.com Tourmaline Cruzeiro Mine, Brazil. 19.5 cm Fine Minerals International proudly invites...EPIDOTE DEPOSITS OF THE CAPELINHA REGION, MINAS GERAIS, BRAZIL Andrea Bartorelli1 Carlos Cornejo2 Mario...mid-1960s, the Capelinha region in the State of Minas Gerais, Brazil, has become world-famous for producing beautiful |  | | 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 |  | | Journal (article/letter/editorial) | | carbonatefaciesis found in a eugeosynclinalsuite in Minas Gerais, Brazil, and is of the Algoma type. The depositsrange...surficial rock known as canga, depositsof Minas Gerais,Brazil, the presenceof which is very resistantto...Althoughsuchrocks are known in the paragneisses of Brazil, no good term has been developedto describethem...factoryterm #neissicitabiritein their fieldwork in Brazil. The nomenclature of iron-formation at the highergradesof...must be considered to beunsatisfactory. Brazil Minas Gerais Perhapsthe mostwidelyknowniron-formations |  | | Book | | MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | 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...also been examined by this method. These include muscovite in topaz, apatite in spinel and corundum, and...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 |  | | 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,...garnet-biotite gneiss and tourmaline-bearing muscovite-biotite granite. Mong Long hosts two main gem-mining...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 |  | | 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) | | mineral collector—Part 3: Treasure-hunting in Minas Gerais since 2000. . . . . . . . . . . ....Mina manganese mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Probably the world’s finest crystal of...cm first emerged into the daylight. Delicate muscovite sheets that were part of the assemblage disintegrated...Mineral Collector—Part 3: Treasure-Hunting in Minas Gerais Since 2000 Guido Steger Nestroystrasse 15 2700...hunts” which he has undertaken since 1969 in Minas Gerais, Brazil. Here he reviews some localities in the |  | | 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;...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...fossils, crystals, misnomer which lasted into Brazil them into fifteen placing terminated semblance |  | | Book | | Watson, Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized...KARIBIBITE LATIN AMERICA BRAZIL C6rrego do Urucum pegmatite, Galileia, Minas Gerais. The rare iron arsenite...while others show clusters resting on matrix of muscovite crystals, with cassiterite and aquamarine beryl...KOSNARITE LATINAMERICA BRAZIL Genipapo [Jenipapo] district, Itinga, Minas Gerais. The very rare K-Zr phosphate...The kyanite aggregates are commonly coated by muscovite, chlorite, or iron-rich magnesite (Zagielski, |  | | Book | | indicating a carbonaceous material. Emeralds from Brazil are usually full of thin liquid films and there...protruding from the surface, showed that it was muscovite mica. The large brown crystal was found to be...noticed in a goshenite (colourless beryl) from Brazil and in the same crystal a manganese apatite and...always twinned according to two different laws: the Brazil twin in which left- and righthanded crystals interpenetrate...heat-treatment of some brownish material from Ouro Preto, Brazil; it contains sufficient chromium to show a red |  | | Book | | . . . . . . . . . . . . . . . . . . . . . . . Brazil . . . . . . . . . . . . . . . . . . . . . . . ......... . ..... . ........ . ................ . Brazil ...... . .... .... ............... .. ....... ...this mechanis1n (Fig. 1.4). Such species include muscovite, lepidolite, biotite, chlorite, amphiboles ( especially...quartz, reddish feldspar, beryl, tourmaline, muscovite, biotite, garnet, apatite, and in some cases thucohte;...southern Norway; northern Karelia, U.S.S.R.; Brazil, in Minas Gerais at Brejauba and Engenho Central, in Paraiba |  | | Book (volume) | | Dauphiné Law, 76 Secondary Dauphiné Twinning, 81 Brazil Law, 87 Combined Law, 90 B. Quartz Twins with Inclined...believed from the opposing optical rotation of (Brazil-twinned) amethyst that two types of quartz existed...Total 16,807 Avg. (weighted) 50.5 Locality Brazil Brazil, Colombia Switzerland Russia U.S., Alaska U...through failure to recognize the true extent of Brazil twinning. ’ Figure obtained after eliminating 931...pale smoky, yellowish, or colorless quartz. Both Brazil and Dauphiné twinning appear to be relatively |  | | Report (volume) | | J'Hll'Cont originated in Latin America, chiefly in Brazil and Cuba. Domestic prod11ction last year was about...l't\f[llirt•m<'nts fol' l\H I muy be obtained from Brazil 1Llonn. Cuhn <'ml ,mppl_v 10 to l :i 1 ►1•1'('1•11t.... Bolivia o____________ • ________ •...•. _ .• Brazil 6 _________________ ••..• _ •.•.•• - 12,217 13...____________ _ Bolivia _____ ----- -- -- ------- -- Brazil _____________ -- -·· - -- -- .... -- - . Chile..._______________________________________ _ 1938 7 34 33 Brazil .... _____________________________ .. ______________ |
|
Itamarandiba, Minas Gerais, Brazil