| | 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...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...red-violet elbaite tourmaline (Brazil, 16.87 ct), blue aquamarine beryl (Brazil, 17.96 ct), orange spessartine | | | 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 | | | 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 | | 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 (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 (article/letter/editorial) | smoky, a yellowish-brown color that is sold as “citrine,” and rose (fig. 1). Amethyst occurs rarely in...yellowish-gray hues that some mineral dealers call citrine from pegmatites arise from a combination of trace...notably from several pegmatite locations in Minas Gerais, Brazil, acquires its color in conjunction with...are responsible for the colors of amethyst and citrine (Rossman 1994). At their typical ppm-level concentrations...in this specimen of microcline from Araçuaí, Minas Gerais, Brazil. The bluish tinge results from a small | | | 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 | | | Journal (article/letter/editorial) | 201-C, Salvador, 40170-290, Bahia, Brazil b Geological Survey of Brazil (CPRM)-Av. Pasteur, 404, Urca, Rio...Rio de Janeiro, 22290-240, Rio de Janeiro, Brazil Received 2 May 2004; accepted 1 May 2006 Available...from Venezuela (Imataca Complex), and others from Brazil (Quadrilátero Ferrífero, Itabira, and Guanhães)...mentioning that the Serra dos Carajás Basin in northern Brazil is older. It contains the worlds' largest iron...metamorphosed Caraíba deposit, Curaçá Valley, Bahia, Brazil. This is an unusual, strongly deformed copper deposit | | | Journal (article/letter/editorial) | The Pederneira Mine São José da Safira, Minas Gerais, Brazil Dedication This article is the culmination...Pederneira Mine ▲ ▲ São José da Safira, Minas Gerais, Brazil Daniel Trinchillo Fine Minerals International...Tallis). Introduction The Pederneira mine in Brazil qualifies as one of the world’s greatest tourmaline...specimen recently recovered at the Pederneira mine in Brazil. It was handed to me by long-time mineral dealer...parents’ home on his way back from a two-month tour of Brazil. The photo knocked my socks off! The dialog went | | | 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) | 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...author: a 14.50 ct “halo cut” citrine (figure 4), a 4.25 ct “iris cut” citrine (figure 5; see also Anderson... The headdress includes a 14.50 ct “halo cut” citrine inlaid in a smoky quartz crown. Amber and obsidian...crown is embossed with an appliqué of garnet, citrine, and epidote. A close view of the face reveals | | | Journal (issue) | 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...mining also continued at traditional sources in Brazil and Africa. Large quantities of Brazilian emeralds...the early ’90s, particularly from Goiás and Minas Gerais (primarily the Nova Era area). By the middle...decline from Minas Gerais due to decreased reserves and reduced demand. Emerald production in Brazil has since | | | 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) | 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) | Tucson • Amethyst from Georgia • Amethyst and citrine from Namibia • Aquamarine from Colorado • Saturated...Mariposa County, California • Iolite from northeastern Brazil • Kyanite widely available in Tucson • “Moonstone”... 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...curiosities is the carved bicolored beryl rose from Brazil in figure 1. Additional items are described in | | | 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 | | | Catalog/List | Compared to the output of place such as Afghanistan or Brazil, the production from Elba is relatively small....with Ametrine - the combination of Amethyst and Citrine in the same crystal or facetted gemstone. The original...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...Itatiaia mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil This rather sizable, pale blue-green Aquamarine | | | Book (edition) | stones virtually indistinguishable from natural citrine and amethyst, which are now produced in Russia...m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality tourmaline...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) | 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...synthetic gemstones using LA-ICP-MS: Amethyst, citrine, and malachite. Goldschmidt 2010, Knoxville, TN | | | Journal (issue) | Krzemnicki M.S., 2007. “Paraiba” tourmalines from Brazil and Africa—Origin determination based on LA-ICP-MS...Ribeiro, owner of the Belmont emerald mine in Minas Gerais, Brazil, gave a stunning presentation on their modern...sources of opal, including Australia (e.g. Figure 3), Brazil, Ethiopia, Honduras, Mexico, Indonesia, Slovakia...mineral inclusions in diamonds from the Juina area of Brazil, which are rather unique geologically because of...colourless topaz is often called gouttes d’eau in Brazil, alluding to the appearance of drops of water. | | | Journal (issue) | and a 3.20 ct Paraíba tourmaline trillion from Brazil. The rings and loose stones are courtesy of Omi...California (Fisher, 2011) in the U.S. as well as Brazil (Proctor, 1985a,b; Koivula and Kammerling, 1989)... Pink elbaite with gray fibers; Cruzeiro mine, Brazil (see Dutrow and Henry, 2000) BD-S4 Black schorl...crystals; Brumado, Brazil BD-S6 Cluster of small light green uvite crystals; Brumado, Brazil a GIA samples...elbaite (BD-S3) from the Cruzeiro mine in Minas Gerais, Brazil. D: Schorl (BD-S4) from Larsemann Hills | | | Journal (issue) | gem localities • New opals from Brazil • Bicolored spessartine from Brazil • Pink/yellow spodumene from...and the staff of Amsterdam Sauer Rio de Janeiro, Brazil RTL TRIBUTE GEMS & GEMOLOGY FALL 2002 207 ...together with rutile needles in a brown beryl from Brazil showing asterism (W. F. Eppler, “Notes on asterism...titanium. Prior to Eppler (1958), brown beryl from Brazil was described by J. Sinkankas (“Some freaks and...unknown. The absorption spectra of brown beryl from Brazil were studied by C. J. Cristino (“Utilisation des |
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Araçuaí, Minas Gerais, Brazil