 | de Souza, J. L., Mendes, J. C., da Silveira Bello, R. M., Svisero, D. P., Valarelli, J. V. (1992) Petrographic and microthermometrical studies of emeralds in the ‘Garimpo’ of Capoeirana, Nova Era, Minas Gerais State, Brazil. Mineralium Deposita, 27 (2) 161-168 doi:10.1007/bf00197103 | Journal (article/letter/editorial) | | the 'Garimpo' of Capoeirana, Nova Era, Minas Gerais State, Brazil J.L. de Sonza ~, J. C. Mendes 1, S...Preto, Ouro Preto, Minas Gerais, Brazil 2 IG, Universidade de S~o Paulo, S~o Paulo, Brazil Received: November...the area of the Capoeirana emerald deposit, Minas Gerais State, revealed two main lithostructural units...the extent of a emeraldiferrous province in Minas Gerais State, which begins at northern Rio Casca and...terms - are represented by the mineral deposit of Itabira, discovered in 1978 S _ . . ~.~C/L~ -~4~ I~ |  | Lynch, E. P., Costanzo, A., Feely, M., Blamey, N. J. F., Pironon, J., Lavin, P. (2014) The Piteiras emerald mine, Minas Gerais, Brazil: fluid-inclusion and gemmological perspectives. Mineralogical Magazine, 78 (7) 1571-1587 doi:10.1180/minmag.2014.078.7.04 | Journal (article/letter/editorial) | | pp. 1571–1587 The Piteiras emerald mine, Minas Gerais, Brazil: fluid-inclusion and gemmological perspectives...gemquality faceted emeralds from the Piteiras Mine, Minas Gerais, Brazil. These data complement those of Rondeau... schist-hosted emeralds. K EY WORDS : Emerald, Brazil, gemmology, fluid inclusions, microthermometry,...~10 20% of world emerald production, which ranks Brazil second after Colombia (Schwarz and Giuliani, 2002;...emeralds in Brazil was made in 1912 in Goiás (Just, 1926). In 1920, the first discovery in Minas Gerais was made |  | | Journal (issue) | | Pearl Testing 36 Emeralds from South America – Brazil and Colombia 48 Clinohumite – The Mountain Fire...rise of new economies such as China, India, and Brazil. The challenges have been numerous as these new...every ICA member, I would like to thank the IBGM in Brazil along with every company, individual, and government...Opening a Tsavorite Mine T anzaniteOne Limited is working towards opening a tsavorite mine not far from its...Tanzania, about 20 kilometers from its tanzanite mine. The project has a total indicated resource of 1 |  | | Journal (article/letter/editorial) | | 550 muscovite major and trace element analyses. The EBPP is situated mainly in the State of Minas Gerais...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...Province (EBPP) is situated mainly in the State of Minas Gerais but also encompasses the southern part of the |  | Giuliani, Gaston, Groat, Lee A., Marshall, Dan, Fallick, Anthony E., Branquet, Yannick (2019) Emerald Deposits: A Review and Enhanced Classification. Minerals, 9 (2) 105 doi:10.3390/min9020105 | Journal (article/letter/editorial) | | sub-types hosted in: (IA) Mafic-ultramafic rocks (Brazil, Zambia, Russia, and others); (IB) Sedimentary...sub-types hosted in: (IIA) Mafic-ultramafic rocks (Brazil, Austria); (IIB) Sedimentary rocks-black shale...ct. Insufu rough emerald extracted from the Kagem mine in 2015. Lastly, on the 2th of October, the remarkable...(“the lion elephant”) was extracted from the same mine [3]. Other giant crystals have been discovered in...emerald crystals was discovered in the Carnaíba mine, Brazil; the specimen weighed 341 kg with 1.7 million |  | | Journal (issue) | | INSTITUTE OF AMERICA Emeralds from Northeastern Brazil Diamantine: Coated Cubic Zirconia Precision Measurement...the Fazenda Bonfim Region, Rio Grande do Norte, Brazil J. C. (Hanco) Zwaan, Dorrit E. Jacob, Tobias Häger...Polished emeralds from this deposit in northeastern Brazil, discovered in 2006, typically display a saturated...rock from Pakistan • Cat’s-eye emerald from Belmont, Brazil • Meteorite watches • Purple common opal from...of the publisher. About the Cover For decades, Brazil has been one of the world’s major sources of fine |  | | 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 (issue) | | Decade of Change A New Era for the Historic Coscuez Mine Esmeraldas Santa Rosa: Our Wealth is Green Rediscovery...Gemological Description of Ethiopian Emeralds Belmont Emeralds – Uncompromisingly Green Overview of Brazil’s...More Exquisite Emeralds Magnificent Old Mine Emeralds 143 Mine Visit A Visit to Colombia’s “Green” Emerald...Origins and Appellation President Clement Sabbagh, Brazil Vice Presidents Damien Cody, Australia Nirmal Kumar...Kumar Bardiya, India Treasurer Marcelo Ribeiro, Brazil Secretaries Bruce Bridges, USA Santpal Sinchawla |  | | Report (issue) | | and trapiche emerald Rupert Hochleitner Brazil: Minas Gerais, Bahia, Ceara, Goias and Tocantins . . ...Asia: Pakistan, Afghanistan and India .......6 0 Old Mine Emeralds . . . . . . . . . . . . . . . . . . . ...Maharajahs and Maharanis held large emeralds (see "Old Mine Emeralds" page 62). The Color of Islam Emerald...quality. It was the gift of Emperor Dom Pedro I of Brazil to the 6 th Duke of Devon- shire. Also housed...some of the most productive emerald localities in Brazil, for example, more than 77 percent of the emerald |  | | Catalog/List | | 5 cm across. £25 Tonca de Onca Mine, Virgem de Lapa Minas Gerais Brazil This is the end member of the...with some pink Hureaulite 7x7 mmCigana Mine, Galileia Minas Gerais £36 4 BRUCITE clear silvery cleavages...matrix, not a visually attractive piece ! Ollinghouse Mine, washoe County Nevada U.S.A £50 . 6 STELLERITE...inch £20 Ilimaussaq Greenland Sapucai Mine, Galileia Minas Gerais about 8.5mm Seinajoki Laani Finland...by RT) Probably merclll'ian tennantite. Gortdrum Mine Tipperary Ireland £8 13 . 14 TSUMEBITE green coating |  | | 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 (article/letter/editorial) | | Institution Washington, DC 20013 pohwatp@si.edu Muscovite Shannon Canyon, Inyo County, California R ocks...particular fondness for muscovite. The texture and earth-tone color of muscovite crystals seem to be a...from the old Russian province of Muscovy, where muscovite was used as window glass. In the late eighteenth...to more than 11.0 weight percent (Fleet 2003). Muscovite is one of many phyllosilicates, which are also...phyllosilicates—exemplified by the mica group, of which muscovite is one of the more recognizable members—is due |  | | Journal (issue) | | setting Gem sapphirine is being recovered from a mine about Sapphirine is derived and obtained from rocks...Sri Lanka the gem sapphirine comes from a carats. mine located near the 9th milepost along the Abstract...Preto, Minas Gerais, Brazil **University of Mainz, West Germany ***CPRM, Salvador, Bahia, Brazil 1. Introduction...occurrences in Brazil. Fig. 1. Ceara Cearâ CE-ll Tami CE-llTauâ Minas Gerais Minas MG-l MG-1 Mina Belmont (Itabira)...in Carnaiba. With the exception of the Belmont Mine in Itabira/MG, the mining methods in the Socotö area |  | | 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...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 |  | Silveira Braga, Flávia Cristina, Santos, João Orestes Schneider, Rosière, Carlos Alberto, Rolim, Vassily K., Roberts, Malcolm P., Evans, Noreen J., Hagemann, Steffen G. (2020) Ediacaran-Cambrian far-field hydrothermal event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements, Lu-Hf and oxygen isotopes. Lithos, 356. 105365 doi:10.1016/j.lithos.2020.105365 | Journal (article/letter/editorial) | | event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements...event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements...event in the southeast of the São Francisco Craton, Brazil: evidence from zircon U-Pb SHRIMP, trace elements...Geociências, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil b Faculdade de Engenharia, Universidade...Universidade do Estado de Minas Gerais, João Monlevade, MG, Brazil c Universidade do Estado do Amazonas |  | | Journal (issue) | | manager Famous mineral localities: the Broken Hill mine, Zam bia..............................................351 Famous mineral localities: the Cruzeiro mine, past and present ................................Warren A new find of crystallized rose quartz in Minas G e ra is ........................................B-2120 Schoten COVER: ELBAITE on quartz from Minas Gerais, Brazil. The crystal is 8.5 mm in width. Photo by...Kitwe, Zambia HISTORY The Broken Hill lead-zinc mine is located near the town of Kabwe, 140 km north |  | | Journal (article/letter/editorial) | | from commercial lithium sources such as the Foote mine at Kings Mountain, North Carolina; the giant crystal-bearing...pegmatites of the Black Hills, South Dakota; the Harding mine in Taos County, New Mexico; the enormous Bernic...Zimbabwe; and scattered mines in Madagascar and Brazil. Interestingly, most of these commercial occurrences... apatite, and gem tourmaline, in addition to muscovite, feldspars, quartz, and such interesting associated...what has been referred to as the A1 Aurtrey “Black” mine only a mile or so from Spruce Pine, apparently on |  | | Journal (issue) | | iridescence observed in “rainbow” hematite from Minas Gerais, Brazil. 40 DNA Techniques Applied to the Identification...iridescence in metamorphic “rainbow” hematite from Brazil. The authors use electron microscopy, atomic force...colored by GR1 defects have been alluvial deposits in Brazil, Guyana, Venezuela, Zimbabwe, the Central African...never graded by GIA), and the 5.03 ct Aurora Green (Brazil), which sold at auction in 2016 for more than US...America has yielded a number of green diamonds from Brazil and Guyana (figure 7). Most show extensive surficial |  | | Journal (issue) | | mineral collector—Part 3: Treasure-hunting in Minas Gerais since 2000. . . . . . . . . . . ....the Morro da Mina manganese mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Probably the world’s finest...2008 issue for his article on the Mockingbird gold mine). Like the rest of us on the staff, he will be striving...cm first emerged into the daylight. Delicate muscovite sheets that were part of the assemblage disintegrated...minerals on DVD wilensky Mimetite, Pingtouling mine, Liannan Co., Guangdong, China. Wilensky Fine Minerals |  | Gomes, Sylvio D., Berger, Sarah, Figueiredo e Silva, Rosaline C., Hagemann, Steffen G., Rosière, Carlos A., Banks, David A., Lobato, Lydia M., Hensler, Ana-Sophie (2018) Oxide chemistry and fluid inclusion constraints on the formation of itabirite-hosted iron ore deposits at the eastern border of the southern Espinhaço Range, Brazil. Ore Geology Reviews, 95. 821-848 doi:10.1016/j.oregeorev.2018.03.025 | Journal (article/letter/editorial) | | eastern border of the Southern Espinhaço Range, Brazil Sylvio D. Gomes, Sarah Berger, Rosaline C. Figueiredo...eastern border of the Southern Espinhaço Range, Brazil, Ore Geology Reviews (2018), doi: https://doi.org/10...eastern border of the Southern Espinhaço Range, Brazil Sylvio D. Gomesa,*, Sarah Bergerb, Rosaline C...a Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil b University of Western Australia, Centre for...southern (Almeida, 1977; Almeida et al., 2000) in Minas Gerais state (Fig. 1). The geology of QF is composed |  | Giuliani, G., France-Lanord, C., Zimmermann, J. L., Cheilletz, A., Arboleda, C., Charoy, B., Coget, P., Fontan, F., Giard, D. (1997) Fluid Composition, δD of Channel H2O, and δ18O of Lattice Oxygen in Beryls: Genetic Implications for Brazilian, Colombian, and Afghanistani Emerald Deposits. International Geology Review, 39 (5) 400-424 doi:10.1080/00206819709465280 | Journal (article/letter/editorial) | | granitic pegmatites and greisens and emerald from Brazil, Colombia, a n d Afghanistan. An i m p o r t a...contrasting and restricted ranges of δ18O values. In Brazil, emeralds related to pegmatites have a systematic...composition of the hydrother mal fluid. Relative to Brazil, the δ18O of Colombian and Afghanistani emeralds...18O-rich sedimentary or metasedimentary rocks. In Brazil, the δD composition of channels in emerald and...1992) and emerald from the Porangatu deposit in Brazil (Fallick and Barros, 1987) and the Swat deposit |  | | Journal (issue) | | Jewelry The Capao Topaz Deposit, Ouro Preto, Minas Gerais, Brazil Harry Winston: A Story Told in Diamonds...Gem-Bearing Pegmatites' A Review Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine...Orthoamphibole S p r i n g 1985 Gem Pegmatites of Minas Gerais, Brazil: The Tourmalines of the Aracuai Districts...Occurrence and Gemological Properties of Wessels Mine Sugilite Three Notable Fancy-Color Diamonds: Purplish...Flux-Grown Synthetic Emeralds Gem Pegmatites of Minas Gerais. Brazil: The Tourmalines of the Governador Valadares |  | | Report (issue) | | crystal weighed 455 kilograms. 2m: The Queen Anne mine in Zimbabwe has produced crystals up to 2 meters...from some pegmatites. This specimen, from Minas Gerais, Brazil, is housed in the Deutsches Edelstein Museum...crystals are found in soils and stream gravels in Brazil. On the other hand, at high temperatures and pressures...is associated with quartz, microcline, albite, muscovite, biotite, ferrocolumbite, and phosphates (such...surprise. In 1997, Gary and Mary Freeman began to mine the Orchard pit, a then insignificant pegmatite |  | | Journal (issue) | | SIX 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...to be able to deterAlthough it is very important mine if if a gem is natural or synthetic, and treated...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 |  | | Catalog/List | | sodium and iron California San Benito River, Gem mine Black prismatic xls imbedded in syenite CROSSITE...iron silicate California San Benito County, Gem mine Compact blue-gray mass with natrolite ..... . GRUNERITE...GRUNERITE Basic iron silicate Michigan Champion, Spons mine White-tan fibrous aggregates in magnetite with stilpnomelane...manganese silicate New York Fowler, Arnold Tale mine Lavender prismatic crystalline mass ...... . LB...mass .............. South Dakota Custer, Bull Moose mine Pure white cleavable mass ........... . MM Fl |
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