 | | Journal (article/letter/editorial) | | Minerais, Universidade Federal de Mato Grosso, Cuiabá, Brazil *Corresponding author, e-mail: rubia@cdp.ufmt.br...Universidade Federal de Ouro Preto, Ouro Preto, Brazil e-mail: hanna@degeo.ufop.br 3 Geochemical Laboratory...Araçuai and western Governador Valadares in Minas Gerais) were analyzed for major, minor and trace elements...trace elements, pegmatite, magmatic differentiation, Brazil. Introduction Muscovite is a common rock-forming...districts, located in the Araçuaí and Governador Valadares regions in Minas Gerais State (Fig. 1) were collected |  | | 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 |  | | Journal (issue) | | SEPTEMBER–OCTOBER 2019 Articles The Golconda District, Minas Gerais, Brazil ..........................................TOURMALINE, 11.9 cm, from the Golconda I mine, Minas Gerais, Brazil Brice Gobin (Mineral Art) and Emanuele Marini...China, South Africa, Namibia, Chile, Peru, Bolivia, Brazil and Mexico. His first exchange of specimens with...September–October, 2019 The Golconda District Minas Gerais, Brazil Carlos Cornejo1 Andrea Bartorelli2 Wendell...important specimen-producing districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a |  | Angeli, Nelson, Teixeira, Wilson, Heaman, Larry, Moore, Michelle, Fleet, Michael Edward, Sato, Kei (2004) Geochronology of the Ipanema Layered Mafic-Ultramafic Complex, Minas Gerais, Brazil: Evidence of Extension at the Meso-Neoproterozoic Time Boundary. International Geology Review, 46 (8) 730-744 doi:10.2747/0020-6814.46.8.730 | Journal (article/letter/editorial) | | Ipanema Layered MaficUltramafic Complex, Minas Gerais, Brazil: Evidence of Extension at the Meso-Neoproterozoic...Ipanema Layered Mafic-Ultramafic Complex, Minas Gerais, Brazil: Evidence of Extension at the Meso-Neoproterozoic...Ipanema Layered Mafic-Ultramafic Complex, Minas Gerais, Brazil: Evidence of Extension at the Meso-Neoproterozoic...University of São Paulo—UNESP, Rio Claro, São Paulo–Brazil WILSON TEIXEIRA, Institute of Geosciences, University...University of São Paulo—USP, São Paulo, São Paulo–Brazil Downloaded by [UNAM Ciudad Universitaria] at 12:44 |  | | Journal (article/letter/editorial) | | and spessartine. Historic localities are found in Brazil, Madagascar, Russia, and the United States, but...(Simmons 2007). Historically, pegmatite deposits in Brazil, Madagascar, Russia, and the United States have...feldspar in the core or core margin of a pegmatite Aquamarine (green-blue to blue beryl variety) and tourmaline...Acadêmico Hélio Ramos, 54740-530, Recife, Pernambuco, Brazil E-mail: beurlen@ufpe.br E LEMENTS , V OL . 8,...right from the upper left, pink morganite beryl (Brazil, 100.99 ct, 35.96 × 25.69 mm), blue topaz (Zimbabwe |  | | Journal (issue) | | the Espirito Santo Pegmatite District, Eastern Brazil.. ......697 by M. L. Chaves, A. Bartorelli & C...sixling twin, 6.3 cm, from ItaguaÇu, Espirito Santo, Brazil. William Larson collection, ex Edward Gübelin,...completed the program at the Federal University of Minas Gerais. He worked in the Magisterium of Extractive...recalled by Wendell Wilson in Mineral Collections of Brazil (Cornejo and Bartorelli, 2020): The second issue...contained a one-page editorial (“Location – Minas Gerais, Brazil”) by editor John White, museum specialist |  | 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) | | 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,...7.99 ct amethyst, 3.29 ct tourmaline, 2.40 ct aquamarine, 1.12 ct Imperial topaz and 4.84 ct golden beryl...Mong Long, gems such as tourmaline (Figure 4d), aquamarine, spessartine, quartz, topaz, zircon and phenakite...pegmatites are a source of beautiful ‘sky’ blue aquamarine crystals. Six tourmaline samples from Mong Pai |  | Melo, M.G., Stevens, G., Lana, C., Pedrosa-Soares, A.C., Frei, D., Alkmim, F.F., Alkmin, L.A. (2017) Two cryptic anatectic events within a syn-collisional granitoid from the Araçuaí orogen (southeastern Brazil): Evidence from the polymetamorphic Carlos Chagas batholith. Lithos, 277. 51-71 doi:10.1016/j.lithos.2016.10.012 | Journal (article/letter/editorial) | | granitoid from the Araçuaı́ orogen (southeastern Brazil): Evidence from the polymetamorphic Carlos Chagas...granitoid from the Araçuaı́ orogen (southeastern Brazil): Evidence from the polymetamorphic Carlos Chagas...syn-collisional granitoid from the Araçuaí orogen T (southeastern Brazil): evidence from the polymetamorphic...Departamento de Geologia, Escola de Minas, 35400-000 Ouro Preto - MG, Brazil Centre for Crustal Petrology...Federal de Minas Gerais, IGC–CPMTC, Campus Pampulha, 31270-901 D Belo Horizonte, MG, Brazil, pedrosasoares@ufmg |  | Andrade, M. B., Atencio, D., Filho, L. A. D. M., Ellena, J. (2011) TThe structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Rendondo Mine, Coronel Murta, Minas Gerais. The Canadian Mineralogist, 49 (2) 615-621 doi:10.3749/canmin.49.2.615 | Journal (article/letter/editorial) | | FROM THE MORRO REDONDO MINE, CORONEL MURTA, MINAS GERAIS, BRAZIL Marcelo B. ANDRADE§ Instituto de Física...Trab. São-carlense 400, 13560-970 São Carlos, SP, Brazil Daniel ATENCIO Instituto de Geociências, Universidade...SP, Brazil Luiz A.D. MENEZES FILHO Instituto de Geociências, Universidade Federal de Minas Gerais, Avenida...Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil Javier ELLENA Instituto de Física de São Carlos...Trab. São-carlense 400, 13560-970 São Carlos, SP, Brazil Abstract We present electron-microprobe and single-crystal |  | | Journal (article/letter/editorial) | | characteristic of gem tourmaline found in Pederneira, Minas Gerais, Brazil. SPECIMEN FROM DANIEL TRINCHILLO ; PHOTO...TOBER 2011 Faceted elbaite stones from Paraíba, Brazil (2.59– 3.68 ct; the stone on the left is about...discovery in the late 1980s in the Paraíba State of Brazil (e.g. Fritsch et al. 1990; Beurlen et al. 2011...(corundum), ruby (corundum), emerald (beryl), aquamarine (beryl), and diamond] have been successfully...Territories, Canada O’Grady Lake (1) Minas Gerais, Brazil Araçuaí district Conselheiro Pena district |  | | Catalog/List | | Compared to the output of place such as Afghanistan or Brazil, the production from Elba is relatively small....59 BRAZIL 73060 TOPAZ var. IMPERIAL TOPAZ Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil This specimen...var. ROSE QUARTZ Galiléia, Doce Valley, Minas Gerais, Brazil Here is a cockscomb arrangement of Rose... 73062 AQUAMARINE & MUSCOVITE Itatiaia mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil This rather...rather sizable, pale blue-green Aquamarine measures 2.95 inches (7.5 cm) across and 1.18 inches (3.0 |  | | Journal (issue) | | jadeite, (3) 7.81 ct violet jadeite, (4) 27.23 ct aquamarine, (5) 1.28 ct blue spinel, (6) 1.17 ct benitoite...Namibia, as well as Madagascar), South America (Brazil and Colombia), central and southern Asia (Sri Lanka...Pakistan; and pink to red tourmalines from Nigeria and Brazil. Diamond was mined in northern Canada for the first...typically report gem- Figure 3. Saturated-color aquamarine comes from relatively few deposits, and Africa...mining also continued at traditional sources in Brazil and Africa. Large quantities of Brazilian emeralds |  | | Journal (issue) | | 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...the Gemological Center in Belo Horizonte, Minas Gerais, Brazil. The rough from which the two stones were |  | | Journal (issue) | | gemstone jewelry trends unveiled in Las Vegas 42 Brazil Governador Valadares show continues to thrive ...India Bhadresh Pandit, Tanzania Clement Sabbagh, Brazil Capt. Ramji Sharma, Japan Avner Sofiov, Israel...gemstone work C lement Sabbagh, the ICA Director in Brazil, received a diploma on behalf of the ICA from the...the municipality of Teofilo Otoni in Brazil which passed a motion thanking ICA via its president Andrew...community in the province of Minas Gerais which is the main region of Brazil for gemstone production. The |  | | Journal (issue) | | and citrine from Namibia • Aquamarine from Colorado • Saturated blue aquamarine from Nigeria • Chalcedony...Mariposa County, California • Iolite from northeastern Brazil • Kyanite widely available in Tucson • “Moonstone”...diamond from Saskatchewan, Canada • Spiral in aquamarine • “Bamboo” moonstone • Pezzottaite in quartz... This material reportedly was from Brazil’s Minas Gerais region. The stones contained additional inclusions...crystal purchased in Governador Valadares, Minas Gerais, Brazil. Leon M. Agee sent the 17.64 ¥ 14.04 ¥ 3 |  | | Journal (issue) | | were in town came to our room to show the usual aquamarine specimens, good but not notable. We asked their...and pulled out his latest find, a thick, gemmy aquamarine crystal about 8 or 9 cm long, its surface etched...unwrapped three nice matrix specimens, two of them aquamarine on feldspar, and the third a combination of lustrous...Skardu partner, and we discussed the earlier aquamarine lot which they had also seen. Their offer was...Pushtun came to our room and showed me a small aquamarine standing vertically on feldspar. It looked good |  | | Journal (issue) | | natural inclusions in this glass imitation of aquamarine (magnified 25×). I will always be grateful for...by Leon Agee. The patterned colors are caused by Brazil-law twinning, while light reflecting from rutile...Luciana Barbosa, Gemological Center, Belo Horizonte, Brazil; Edward Boehm, Joeb Enterprises, Solana Beach,...the East Coast lab. Reported to be from a mine in Brazil, it was submitted for identification of its transparent...blue color suggested that these crystals were aquamarine, but closer examination revealed that the crystals |  | | Journal (issue) | | from Afghanistan • Ammonite from Madagascar • Aquamarine from Vietnam • Chalcedony from Peru • Afghan...mining in Sri Lanka • Green cat’s-eye spodumene from Brazil • Color-zoned topaz • Variscite from Peru • Corundum...environments (figure 1). Some contemporary sources are Brazil, Uruguay, Zambia, Namibia, Mexico, Russia, Arizona...Origin Bolivia (Anahí) Bolivia (Anahí) Brazil (Marabá) Brazil (Pau d’Arco) France (St. Raphael) Japan...al., 2005). Some natural material from (Marabá) Brazil shows total absorption in the ~3600 to 3000 cm–1 |  | | Journal (issue) | | AND MARKETS Figure 9. Near Nova Era in Minas Gerais, Brazil, the Belmont mine operates using sophisticated...other mines in the area slowed (Weldon, 2006). Brazil witnessed a sustained slump in overall gemstone...in places like the United Arab Emirates, Russia, Brazil, India, and China—locations that would not have...discovered in Paraíba and Rio Grande do Norte states in Brazil in 1989 (Fritsch et al., 1990) and became known...plummeted, mining operations in key centers such as Brazil and Zambia curtailed or ceased production, though |  | | Journal (issue) | | shortly after the discovery of major deposits in Brazil. The locally mined diamonds were fashioned in India...product. By the time diamond mining started in Brazil in 1730, production from India had declined to...discovered in only two countries: Brazil (three deposits in Minas Gerais) and Madagascar (Maschmeyer and...yield 1+ ct faceted stones is from the Araçuaí region of Minas Gerais (Kammerling and Fritsch, 1993); the...quantities have been found in the Araçuaí region of Minas Gerais, Brazil. Note the color zoning evident |  | | Book (edition) | | m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality tourmaline...largest crystals are opaque some gem-quality aquamarine and topaz crystals can weigh many kilograms....acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals occurring in small...amethyst from volcanic rocks in Rio Grande do Sul, Brazil. The amethyst crystals are more strongly coloured...Alluvial sands containing diamonds near Sopa, Minas Gerais, Brazil The above discussion has concentrated on |  | | Journal (issue) | | 2.Universidade Federal Rural do Rio de Janeiro, Brazil (UFRRJ) - fermamll@ufrrj.br 3.IRD caixa postal...REE- carbonate phosphates, niobium, carbonatite, Brazil. 1. Introduction The alkaline-carbonatite complex...southeast of the state of Goiás and westwards of Minas Gerais, Brazil. It outcrops at about 20 km NE of the city...Field Guide Book, 5th Int. Kimberlite Conf., Araxá, Brazil ; CPRM, Brasilia, Sp. Publ., 1991, pp. 25-30. Elliott...Morbidelli L., 1990. Carbonatite complexes from Brazil: a review. J. South Amer. Earth Sc., 3-1 (1990) |  | | Book | | potential deposits of SiO2 raw materials in Argentina, Brazil, Germany and Norway. The third part of the book...collaboration between scientists from Australia, Brazil, Canada, Germany, Norway, Switzerland and the USA...Color-Enhancing of Gemological Crystalline Quartz in Brazil . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . 6.3.3 Quartz Color-Enhancing in Brazil. . . . . . . . . . . . . . . . . . . . . . 139...50740-530, Brazil Mario L. S. C. Chaves Departamento de Geologia, IGC, Universidade Federal de Minas Gerais |  | | Journal (issue) | | amber imitation • Assembled diamond imitations from Brazil • Enamel-backed quartz as a star sapphire imitation...Also presented were the results of exploration in Brazil and in the Wawa and James Bay Lowland areas of...INTERNATIONAL Figure 9. This 19.39 ct amethyst from Brazil displays chatoyancy. Photo by Jaroslav Hyrsl. ...1996). Alfred A. Levinson Cat’s-eye amethyst from Brazil. Amethyst is one of the more common gems, but it...cat’s-eye amethysts he purchased during a visit to Brazil in summer 2000. The translucent, dark violet stones |
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Araçuaí, Minas Gerais, Brazil