 | 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...from Pakistan • Cat’s-eye emerald from Belmont, Brazil • Meteorite watches • Purple common opal from Mexico...of the publisher. About the Cover For decades, Brazil has been one of the world’s major sources of fine |  | | 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 |  | | Journal (issue) | | Decade of Change A New Era for the Historic Coscuez Mine Esmeraldas Santa Rosa: Our Wealth is Green Rediscovery...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...acquiring the majority stake in the iconic Coscuez mine in Colombia. The 2015 Symposium focused on the government’s |  | | Journal (issue) | | from Brazil shows chatoyancy caused by flat hollow channels. Four-rayed star aquamarine from Brazil has...the c-axis. A tourmaline-quartz combination from Brazil has an iridescent chatoyancy Grey orthoclase moonstone...cat's-eye from Brazil A very unusual example of a cat's-eye was purchased in Brazil by the author in...measuring Figure 1: Chatoyant pale blue topaz from Brazil weighing 152.15 ct. Photo by J. Hyrsl. 32.94 x...described two topaz cat'seyes, one blue of 7.98 ct from Brazil and another colourless of 12.20 ct from Sri Lanka |  | | 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) | | 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,...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha... quartz, zircon, apatite, topaz, sillimanite, fluorite, chrysoberyl, chal- For more than a century,...The source of much of this pyrite is the Huanzala mine in west-central Peru, which has probably yielded |  | | Book | | of the Stone in Myth and in Rock 9 3 From Mine to “Mine”: The Emerald Business 21 4 Emeralds in World...could identify the country and sometimes the actual mine a particular stone came from. However, vaporizing...of some ocean. The glorious emeralds of the Muzo mine of Colombia are embedded in calcite veins found...been described for precious gems. r From Mine to “Mine”: The Emerald Business The rarity of emeralds...percent of this in Colombia, followed by Zambia, then Brazil, Pakistan, Zimbabwe; much smaller amounts are found |  | | Journal (issue) | | the development of Australia’s first major diamond mine, the world’s largest source of diamonds by volume...Benitoite mine sold • Emeralds from Laghman, Afghanistan • Emeralds from Piteiras, Brazil • Educational...“close-up” map shows the location of the three main mine sites discussed in this article: Kormos, Oxbow,...1983, when mining started at the open-pit Kormos mine, high-quality material has been offered regularly...the only major producer. Today, work at the Kormos mine is temporarily suspended, and production comes from |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...named according to chemical composition (e.g. fluorite). to crystallographic tenns (e .g. prismatine)...to reflect the light gypsum. 3 - calcite, 4 - fluorite, 5 - apatite, 6 - ortho- beam on the polished |  | | Journal (issue) | | Staurolite in kyanite from Brazil • Obsidian with spessartine inclusions • Fluorite inclusions in quartz from...were occasional finds over the centuries in India, Brazil (Cassedanne, 1989), and perhaps elsewhere, the...been cut from a large crystal found at the Finsch mine in South Africa. Figure 2. The Tiffany yellow diamond...of rough recovered from a claim on the Kimberley mine was later fashioned into the Tiffany diamond (again...(again, see figure 2). In 1964, the Dutoitspan mine yielded a spectacular 253.70 ct transparent yellow |  | | Journal (issue) | | ARTICLES 260 An Update on “Paraíba” Tourmaline from Brazil James E. Shigley, Brian C. Cook, Brendan M. Laurs...on amethyst, citrine, and ametrine from the Anahí mine, Bolivia • “Copal” resin from Madagascar • Iolite...corundum from Wyoming • Green kyanite from Bahia, Brazil • “Ruby Rock” cabochons • Tourmaline from Warner...More recently, Brendan has visited Madagascar and Brazil to obtain first-hand knowledge of important gem...of gemological topics: “Paraíba” tourmaline from Brazil, spessartine garnet from California, Malaya garnet |  | | Journal (issue) | | emeralds • Euclase from Colombia • Color-change fluorite • Herderite from Pakistan • Jeremejevite from...emeralds were purchased or collected directly from the mine areas. The authors acquired the other samples at...Sandawana, Zimbabwe ItabiraNova Era, Brazil Santa Terezinha, Brazil Swat, Pakistan Panjshir, Afghanistan...famous localities in South America (Colombia and Brazil), Asia (Russia, Pakistan, and Afghanistan), and...(Kafubu, Zambia; Sandawana, Zimbabwe; and Itabira–Nova Era, Brazil) Group 2—Crystallization without the involvement |  | | Report (issue) | | porphyry Mo and W-Mo-Be skarn deposits northwest of Mine Hill and south of Middle Hills. At a cut-off grade...FIGURE 25. Schematic cross section showing Be-fluorite deposition at Round Top Mountain, Sierra Blanca................................. 8 TABLE 2. World mine production of beryllium, in metric tons (Jaskula...Other countries include Portugal, Madagascar, and Brazil. These figures do not include possible production... Production and reserves from the Spor Mountain mine owned by Brush Wellman (metric tons Be content, |  | | Book | | Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous...ilmenite crystals as described here for the Dodo mine. In general, ilmenite crystals from the Subpolar |  | | Journal (issue) | | frequently in quartzes, i.e. the Dauphiné and the Brazil laws (see e.g. Frondel, 1962), cannot be responsible...Crystallized and massive rose quartz deposits in Brazil. Journal of Gemmology, 22 (5), 273-86 Frondel,...described from a pegmatite at Limoeiro, Minas Gérais, Brazil, and crystals of montebrasite of exceptional...minerals and with amblygonite is discussed. M.O'D. Piteiras, Brasilien: erfolgreiche Smaragdsuche mit modernen...recovery are in use at the Piteiras emerald deposit in Minas Gérais, Brazil where emerald is found with |  | | Book | | Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil Reprinted from: Minerals 2019, 9, 233, doi:10.3390/min9040233...Province (BPP) from Rio Grande do Norte in Northeast Brazil. The Boqueirao granitic pegmatite is classified...sources (i.e., Afghanistan (Panjsher Valley), Brazil (Itabira), Colombia (Coscuez), Ethiopia (Shakisso),...Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil. Minerals 2019, 9, 233. [CrossRef] Huong, L.T.-T...Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil Sabina Strmić Palinkaš 1, *, Ladislav Palinkaš |  | | Journal (issue) | | News International • Australia’s Ellendale diamond mine opens • Aquamarine and spessartine from Tanzania...• New morganite mine in Madagascar • Namibian gem localities • New opals from Brazil • Bicolored spessartine...spessartine from Brazil • Pink/yellow spodumene from Afghanistan • Glass imitations encountered in Namibia...diamonds shown here are from Canada’s Ekati Diamond Mine™, which started production in 1998. The necklace...and the staff of Amsterdam Sauer Rio de Janeiro, Brazil RTL TRIBUTE GEMS & GEMOLOGY FALL 2002 207 |  | | Journal (issue) | | occasionally recovered by hobbyist collectors from the mine dumps. D uring the late 19th and early 20th centuries...a Byrud emerald in an antique jewelry piece. The mine is located on the shore of Lake Mjøsa, near Minnesund...Northwest Territories, Canada; Salininha in Bahia, Brazil; Ma- 108 EMERALDS FROM BYRUD, NORWAY lipo in...quartz, feldspar, spheres of muscovite, and grayish fluorite. Courtesy of the Norwegian Mining Museum, Kongsberg;...assets sold to the Cornish Development Co. Ltd. The mine was subsequently abandoned in 1909 (Nordrum and |  | | Journal (issue) | | Tanzania, around the end of the 1960s, and the mine was active for about a decade. Since then, gem-quality...mentioned in the literature, in samples from Austria, Brazil, China, Egypt, India, South Africa and Ukraine...OF GEMMOLOGY, 38(2), 202 2 stones from Bahia, Brazil (Santiago 2015) and opaque to partially translucent...from Turkey, 1.52 ct from Peru and 0.81 ct from Brazil; front row, left to right: 4.45 and 6.17 ct from...metals, the samples from Ethiopia, Tanzania and Brazil showed weak attraction to the magnet using the |  | | Journal (issue) | | North Carolina • Emerald-in-matrix from Bahia, Brazil • 5th century garnet jewelry from Romania • Natural...reports on copperbearing tourmalines from Paraíba, Brazil; rubies and sapphires from Vietnam; and rubies...Tajikistan, Kenya, Madagascar, Mozambique, Tanzania, and Brazil. The scapolite group consists of two main end members:... Madagascar a Tanzaniaa Tanzaniab Myanmar a,b Brazil (Espirito Santo)a Switzerland (Lake Tremorgio)a...2009 Spring 2006 “Paraíba”-type Tourmaline from Brazil, Nigeria, and Mozambique: Chemical Fingerprinting |  | | Journal (issue) | | rhodochrosite, 2.59 ct Paraíba tourmaline from Brazil, 8.51 ct Sri Lankan spinel, 13.00 ct Madagascar...“padparadscha” sapphire, 2.12 ct Paraíba tourmaline from Brazil. Photo of stones © GIA and Harold & Erica Van Pelt;...Shown here is the recovery plant at the Jwaneng mine in Botswana. Photo courtesy of Debswana. another...a poster on golden rutilated quartz from Bahia, Brazil. Near right: Designer Michael Bondanza discusses...2020 Yasukazu Suwa I t took about 2,700 years to mine and fashion an estimated 0.8 tons of diamonds before |  | | Journal (issue) | | 4.32 0.051 0.147 0.711785 ± 0.000042 Hualien mine 0.28 3.57 0.078 0.227 0.712853 ± 0.000040 ...TH nephrite Siberia, Russia VR nephrite Vitim mine 0.50 4.11 0.122 0.352 0.711390 ± 0.000031 ...The jadeitite veins, e.g. the one at the Maw Sit mine near the north end of the Jade Tract, are almost...such as steatite, gypsum, marble, calcite and fluorite can be carved and sold in the market. These materials...(Khuentak, 1988b: 28-9). However, the owner of a mine in Thailand revealed that there are also red, pink |  | | Journal (volume) | | .........................319 EM61 Mineralogy of mine wastes and contaminated soil......................and phases composition of flotation waste of Bor mine (Serbia) Cocić, M.1, Matović, B.2 & Logar, M.3*...from Myanmar Emeralds from the Piteiras mine, Minas Gerais State, Brazil: genetic implications from fluid...Vandoeuvre-le`sNancy, France The Piteiras mine in Itabira is located in the Minas Gerais State, Brazil and produces gem...Temperature (oC) Koffiefontein mine 1087 (±15) 5.2 (±0.1) Finsch mine 1041 (±5) 5.0 (±0.1) The structural |
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