 | | 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...crystals of tourmaline in beautiful emerald-green, indicolite-blue and rubellite-red colors with green terminations |  | | 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) | | 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 (article/letter/editorial) | | characteristic of gem tourmaline found in Pederneira, Minas Gerais, Brazil. SPECIMEN FROM DANIEL TRINCHILLO ; PHOTO...Elbaite, “fluor-elbaite,” fluor-liddicoatite Blue Indicolite Fe2+, Fe2+ -Fe3+ IVCT Elbaite, “fluor-elbaite...TOBER 2011 Faceted elbaite stones from Paraíba, Brazil (2.59– 3.68 ct; the stone on the left is about... to red), verdelite (yellow-green to green), indicolite (blue-green to blue), and achroite (colorless)...discovery in the late 1980s in the Paraíba State of Brazil (e.g. Fritsch et al. 1990; Beurlen et al. 2011 |  | | 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...Itatiaia mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil This rather sizable, pale blue-green Aquamarine... 73063 RHODONITE Conselheiro Lafaiete, Minas Gerais, Brazil Here sharp rosy crystals up to 1.33 inches |  | | Journal (issue) | | 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...known to originate from the Brazilian state of Minas Gerais. The same client also submitted a transparent...numerous twophase (fluid and gas) inclusions. Although Brazil is a known source of apatite, references in 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...malaya garnet (figure 6). Obsidian, magnesite, indicolite, black agate, and 28 Notes and New Techniques...nature of each eye, including obsidian pupils, indicolite irises, magnesite whites, and black agate eyeliner...outward from the obsidian pupil, the artist used indicolite tourmaline for the irises, magnesite for the |  | | Journal (issue) | | inclusion | Tourmaline from the Cruzeiro Mine, Brazil | Natural diamond showing a ‘synthetic’ pattern... Bend, Oregon, USA. The quartz originated from Brazil, and it was polished on all sides except the back...Madagascar, blue halite from New Mexico, lepidolite from Brazil and tinzenite from Italy, as well as orange lizardite...g. Figure 14). Green kyanite is also known from Brazil and Tanzania, and its coloration is due to Fe3+...recently appeared on the market from Araçuaí, Minas Gerais, Brazil, and it is translucent and ‘tough’ enough |  | | Book (edition) | | 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...worldwide but some of the most important are in Brazil, where the gem-quality deposits are associated |  | | 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 |
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Araçuaí, Minas Gerais, Brazil