 | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit João Adauto Souza Neto...located in the Borborema Province in northeastern Brazil and consists of a gneiss basement (Archean to Paleo-Proterozoic)...locally gold. Recently, the discovery of gold in the Bonfim tungsten skarn has resulted in a better understanding...Recife, Brazil e-mail: adauto@ufpe.br J. M. Legrand Departamento de Geologia, Universidade Federal do Rio...Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59.072-970 Natal, Brazil M. Volfinger : M.-L |  | | Journal (article/letter/editorial) | | mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira...mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil, Ore Geology...mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira... da Arquitetura, s/n, 50740-550, Recife (PE), Brazil Corresponding author: Nayara Moreira de Mesquista...skarns in the Borborema Province, northeastern Brazil. The Bonfim W-Mo-Au-Bi-Te skarn occurs within a Neoproterozoic |  | | Journal (issue) | | INSTITUTE OF AMERICA Emeralds from Northeastern Brazil Diamantine: Coated Cubic Zirconia Precision Measurement...3 Emeralds from the Fazenda Bonfim Region, Rio Grande do Norte, Brazil J. C. (Hanco) Zwaan, Dorrit E...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 |  | | 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 |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | Huang, Yi-Ru, Guo, Na, Tang, Ju-Xing, Shi, Wei-Xin, Ran, Feng-Qin (2020) Garnet Characteristics Associated with Jiama Porphyry-Skarn Cu Deposit 1# Skarn Orebody, Tibet, Using Thermal Infrared Spectroscopy. Minerals, 11 (1) 5 doi:10.3390/min11010005 | Journal (article/letter/editorial) | | increasingcould grossular component thephenomenon andradite series (i.e., increasby an increasing grossular component...450 nm 11,380 nm 11,310 nm 11,223 nm belong to grossular-andradite solid solution. From the core to the...Total Si Ti Al Cr Fe3+ Fe2+ Mn Mg Ca Andradite Grossular Almandine + Pyrope + Spessartine 33.7 98.69 ...3.09 0 0.49 0 1.2 0.16 0.03 0.02 3.13 72.15 Grossular Almandine + Pyrope + Spessartine 1.2 12.26 ...67 Si Ti Al Cr Fe3+ Fe2+ Mn Mg Ca Andradite Grossular Almandine + Pyrope + Spessartine 3.07 0 0.24 |  | | Journal (issue) | | this assertion, three additional sites (two in Brazil and one in Zambia) were sampled and assessed for...Colombia (MZC), (4) Campo Verdes, Brazil (GOB), (5) Carnaíba, Brazil (CFB), and (6) Chantete, Zambia (ZAM)...between the emeralds of Campos Verde and Carnaíba, Brazil at a critical value of 4.97 (F0.05(1,10)=4.97)...Cordillera in the Guavio-Macanal formation (Muzo mine and Cosquez mine). Banks et al. (2000) discovered that although...neighbouring mines of Muzo and Cosquez in the 1226 area. Brazil Of the ANOVAs performed for the compositions of |  | | Journal (issue) | | Federal University of Ouro Preto, Minas Gerais, Brazil **University of Mainz, FRG 1. Introduction The...Grosso and after that using the BR 407 to Senhor do Bonfim. The distance between Salvador and Campo Formoso...been the most important emerald mining region in Brazil until the discovery of the Santa Terezinha occurrence...Formoso/ "fCARNAIBA Mirangaba \ ~ ^ * * *• ASanhnr do Ronf.m Monte Santo ^**ol!Euclides da Cunna Lpindobaçu...*°* ,x Mundo^^^A B a i x a Novo Grand 'Entre Rio« « •««Sao AlagoinhojKy FE IRA DE SANTANA\ (f o\ |  | | 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 |  | | 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...(2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado. AM. 63. 930-937. 1978. 4...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO |  | | Journal (issue) | | observed in “rainbow” hematite from Minas Gerais, Brazil. 40 DNA Techniques Applied to the Identification...inclusions • Unusual orange pyrope-spessartine-grossular garnet • New plastic opal imitation from Kyocera...Micro-World, and Charts are not peerreviewed sections but do undergo technical and editorial review. Copyright...iridescence in metamorphic “rainbow” hematite from Brazil. The authors use electron microscopy, atomic force...The nature of these broad bands is unclear, as they do not occur in all diamonds showing high concentrations |  | | Journal (issue) | | diamond octahedron with stellate cloud inclusion • Grossular garnet crystals in demantoid garnet • Resin imitation...Micro-World, and Charts are not peerreviewed sections but do undergo technical and editorial review. Copyright...Spinel Topaz Turquoise Potosí Salvador da Bahia Rio de Janeiro Moscow Karakorum Tunis Kashgar Sea...Rainier’s footsteps: Journey to the Chivor emerald mine. G&G, Vol. 52, No. 2, pp. 168–187, http://dx.doi...Fancy black diamonds do not show major variations in hue or color saturation, but they do vary by transparency |  | | Journal (issue) | | a n d this often saved argument as to who should do what. Thus, all the drilled pearls (except obvious...mined since the turn of the century at the Barton mine, North Creek, New York, and at Emerald Creek, Clarkia...O R K ALMANDINE T h e Barton mine (formerly known as the Rogers mine) on Gore mountain, North Greek...mined for use as an abrasive. Crystals from this mine sometimes attain a diameter of 60 cm. T h e garnet...the garnet and associated minerals of the Barton mine near North Creek New York. A m . Mineral., 34, 573-582 |  | | Journal (issue) | | Amazonite in Quartz from Bahia, Brazil | Blue Apatite in Jasper from Brazil | Aquamarine Crystal with ‘Enhydro’...‘Enhydro’ Inclusion from Brazil | Catapleiite from Mont Saint-Hilaire, Québec, Canada | Chrysocolla Chalcedony...offers webinars on pink diamonds from the Argyle mine in Australia, ruby treatments and current market...Quartz from Bahia, Brazil Gem-quality amazonite feldspar is well known from Brazil, particularly from...Souto (Gems in Gems, Teófilo Otoni, Minas Gerais, Brazil) had some new production of amazonite from Bahia |
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