 | 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) | | Vol. 78(7), pp. 1571–1587 The Piteiras emerald mine, Minas Gerais, Brazil: fluid-inclusion and gemmological...gemquality faceted emeralds from the Piteiras Mine, Minas Gerais, Brazil. These data complement those of Rondeau...al. (2003) who also presented analyses of the Piteiras emeralds. Emeralds are found typically as euhedral-to-anhedral...006 0.008) and specific gravity (2.65 2.78), the Piteiras emeralds fall within the expected range for metasomatic...EY WORDS : Emerald, Brazil, gemmology, fluid inclusions, microthermometry, Piteiras. Introduction EMERALD |  | 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 |  | | 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) | | 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...The source of much of this pyrite is the Huanzala mine in west-central Peru, which has probably yielded...emerged from another Peruvian deposit: the Quiruvilca mine in northern Peru. The as-mined specimens typically |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | emerald mines in Colombia are becoming depleted. Brazil currently accounts for approximately 10% of world...samples from the Lened occurrence in Canada, the Muzo mine in Colombia, the Mohmand district in Pakistan, and...export values of emerald rough (Zwaan et al., 2005). Brazil currently accounts for approximately 10% of world...to 0.02% were of gem-quality. 89 Since then the mine has been re-opened and closed several times (Walton...have also been recovered from the Wodgina tantalum mine in Western Australia (Schwarz, 1991). 5.3. Austria |  | | 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 |  | | 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) | | associated with olivine in marble matrix was seen at a mine in the Luc Yen district. Photo by Vincent Pardieu/GIA...Secondary Major cities/towns Road micaschist, and amphibolite. These metamorphic rocks are sometimes intruded...department. He researches and documents the entire mine-to-market gem and Armil Sammoon Andrew Lucas jewelry...Group in Casablanca obtained exclusive rights to the mine (an open quarry, in accordance with Moroccan law)...arid and forbidding environment (figure 3). The mine is located 6 km east of the Tagragra Tata Precambrian |  | | Journal (issue) | | biotitic and two-mica schists, with bodies of amphibolite and serpentinite; these rocks belong to the Kohút... 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 |  | | 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...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald |  | | 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...assets sold to the Cornish Development Co. Ltd. The mine was subsequently abandoned in 1909 (Nordrum and...and a small workshop were reportedly built at the mine, but few vestiges are visible today. However, production |  | | Report (issue) | | porphyry Mo and W-Mo-Be skarn deposits northwest of Mine Hill and south of Middle Hills. At a cut-off grade................................. 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,...world account for current production; Spor Mountain mine in Utah is the largest and most important deposit |  | | Journal (issue) | | sunstone from India • Staurolite in kyanite from Brazil • Obsidian with spessartine inclusions • Fluorite...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 |  | | 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) | | 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) | | pressures (extending from pumpellyite-actinolite to amphibolite facies), either during metamorphism (in situ...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 ...occurs west of Cowell, South Australia, in an amphibolite facies metamorphic complex (Cleve Metamorphics)...which have been metamorphosed at greenschist and amphibolite facies conditions. The thicknesses of Fe-bearing |  | | 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...granites are the preferred mineralised zones with amphibolite-phlogopite schists acting as the host rock for |
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