 | Dybowska, Agnieszka, Schofield, Paul, Newsome, Laura, Herrington, Richard, Mosselmans, Julian, Kaulich, Burkhard, Kazemian, Majid, Araki, Tohru, Skiggs, Thomas, Kruger, Jens, Oxley, Anne, Norman, Rachel, Lloyd, Jonathan (2022) Evolution of the Piauí Laterite, Brazil: Mineralogical, Geochemical and Geomicrobiological Mechanisms for Cobalt and Nickel Enrichment. Minerals, 12 (10) 1298 doi:10.3390/min12101298 | Journal (article/letter/editorial) | | minerals Article Evolution of the Piauí Laterite, Brazil: Mineralogical, Geochemical and Geomicrobiological...J.; Kruger, J.; et al. Evolution of the Piauí Laterite, Brazil: Mineralogical, Geochemical and Geomicrobiological...Mines, University of Exeter, Penryn TR10 9FE, UK Diamond Light Source Ltd., Harwell Science and Innovation...p.schofield@nhm.ac.uk Abstract: The Piauí laterite (NE Brazil) was initially evaluated for Ni but also...42 Keywords: Ni-Co laterite; critical metals; Piauí; metal cycling; cobalt speciation; biogeochemistry; |  | Newsome, Laura, Solano Arguedas, Agustín, Coker, Victoria S., Boothman, Christopher, Lloyd, Jonathan R. (2020) Manganese and cobalt redox cycling in laterites; Biogeochemical and bioprocessing implications. Chemical Geology, 531. 119330 doi:10.1016/j.chemgeo.2019.119330 | Journal (article/letter/editorial) | | was observed in four laterites (Acoje, Çaldağ, Piauí and Shevchenko) from different continents. A new...2016; the Piauí deposit, Brazil. Two samples were used in these experiments “Piauí 23” and “Piauí 4”. All...containing four different laterites (Acoje, Çaldağ, Piauí, Shevchenko). A multidisciplinary approach was used...electron donor controls. 2.1.4. Biostimulated Piauí laterite sediment microcosms To test the ability...and Ni, sediment microcosms were set up with the Piauí laterite and biostimulated with two different electron |  | | Journal (issue) | | engagement. During the development of the Gahcho Kué diamond mine, De Beers Canada recognised the need to communicate... BRAZILIAN NICKEL The Piaui Nickel Project in Brazil looks to change the nickel industry: Brazilian...a sustainable future for the local community in Piauí is one of the most important aims of the business...develop the flagship Piauí Nickel Project, in the North Eastern Piauí state of Brazil. Over the last three...vision for the future. “This is the poorest state in Brazil and so we want to bring opportunities and jobs |  | | Journal (issue) | | phosphorescence colors • Diamond with “etched dislocation loops” • HPHT-annealed yellow-orange diamond • Translucent...diamonds • Unusual natural-color black diamond • Yellow synthetic diamond, possibly grown at higher temperatures...Cat’s-eye leifite from Canada • Play-of-color opal from Brazil • Prehnite from Tanzania • Colorado rhodochrosite...use to in the voting. determine its impact on diamond clarity grades. Receiving second place was “Identification...“‘Paraíba’-type Copper-bearing Tourmaline from Brazil, Nigeria, and Mozambique: Chemical Fingerprinting |  | | Book | | until he managed to reach the land of his dreams, Brazil. A specialist in the field of geology and mineralogy...crystals and the remarkable mineral treasures of Brazil, as well as the incredible adventures and difficulties...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL Cyan Magenta Yellow Black 1 Delev Ilia Deleff...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL SOFIA–MOSCOW 2004 3 Cyan Magenta Yellow Black...MINERAL TREASURES OF BRAZIL 76 85 AN OUTLINE OF THE MINERAL RESOURCES OF BRAZIL ORIGIN OF GIANT CRYSTALS |  | Bezerra, Francisco Irineudo, da Silva, João H., Miguel, Emílio de Castro, Paschoal, Alexandre R., Nascimento, Daniel R., Freire, Paulo T. C., Viana, Bartolomeu C., Mendes, Márcio (2020) Chemical and mineral comparison of fossil insect cuticles from Crato Konservat Lagerstätte, Lower Cretaceous of Brazil. Journal of Iberian Geology, 46 (1). 61-76 doi:10.1007/s41513-020-00119-y | Journal (article/letter/editorial) | | Crato Konservat Lagerstätte, Lower Cretaceous of Brazil Francisco Irineudo Bezerra1 · João H. da Silva2...from the Lower Cretaceous (Aptian) of northeast Brazil is extremely well preserved. Crato insects are...Departamento de Física, Universidade Federal do Piauí, Teresina, Piauí 64048‑480, Brasil 13 Vol.:(0123456789)...stands out from others in the mainland Northeast Brazil because it encompasses the most complete Cretaceous...located in the border area of the Brazilian states of Piauí, Ceará, Paraíba and Pernambuco, covering an area |  | Crósta, A.P., Reimold, W.U., Vasconcelos, M.A.R., Hauser, N., Oliveira, G.J.G., Maziviero, M.V., Góes, A.M. (2019) Impact cratering: The South American record – Part 1. Geochemistry, 79 (1) 1-61 doi:10.1016/j.chemer.2018.06.001 | Journal (article/letter/editorial) | | State University of Campinas, Brazil University of Brasília, Brazil Natural History Museum – Leibniz...d Federal University of Bahia, Brazil e University of São Paulo, Brazil b c A R T I C LE I N FO A B...Universitária ‘Zeferino Vaz’, Campinas, SP, CEP 13083-855, Brazil. E-mail address: alvaro@ige.unicamp.br (A.P. Crósta)...xxx–xxx A.P. Crósta et al. offshore region of Brazil. Once again, this number of impact structures in...research and meteoritics have been presented in Brazil and Argentina by renowned researchers in the field |  | | Journal (issue) | | Inspector| Presidium Synthetic Diamond Screener II|SYNTHdetect mounted diamond screening device|CIBJO Congress...Congress reports|Canadian diamond anniversary|GRS colour terms| GSA gem abstracts| Margaritologia pearl...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,...Terrence S. Coldham Emmanuel Fritsch Honorary Diamond Member Martin Rapaport Chief Executive Officer |  | | Journal (article/letter/editorial) | | CEP 20921–400, São Cristóvão, Rio de Janeiro, Brazil *Corresponding author. E-mail: adepelumi@yahoo...the Serra da Cangalha impact crater, northeastern Brazil. The analyses of the data have provided characteristic...impactdatabase/index.html). Several more are found each year. In Brazil alone, there are currently five established impact...is known as the second largest impact crater in Brazil (Crósta 1987), having a diameter of 12 km, estimated...structure is located at 46°52′W and 8°05′S in northeast Brazil (Fig. 1). The structure is characterized by a distinct |  | | Journal (article/letter/editorial) | | Bauru Group (Upper Cretaceous), Minas Gerais, Brazil Fábio Antônio de Oliveira, Rodrigo Miloni Santucci... Bauru Group (Upper Cretaceous), Minas Gerais, Brazil, Cretaceous Research, https://doi.org/10.1016/j...Bauru Group (Upper 2 Cretaceous), Minas Gerais, Brazil 3 4 Abstract – The deposits of the Serra da Galga...Group), in 5 Uberaba, state of Minas Gerais, Brazil, provided a rich fauna of vertebrates of Maastrichtian...an important 2 26 fauna of Cretaceous age in Brazil (Ribeiro and Carvalho, 2009). However, data on |  | | Journal (issue) | | This article chronicles the history of Canadian diamond exploration, with particular attention given to...as well as Canada’s growing impact on the world diamond market. pg. 206 NOTES AND NEW TECHNIQUES __________... natural inclusions in fancy-color diamonds • Diamond with “compact disc” inclusion • Hemimorphite •...Gem News International • Australia’s Ellendale diamond mine opens • Aquamarine and spessartine from Tanzania...gem localities • New opals from Brazil • Bicolored spessartine from Brazil • Pink/yellow spodumene from |  | | Journal (issue) | | The lead article of this issue covers Brazilian diamond production,which reached its peak in the late 1700s...ct natural Fancy Light pink antique pear-shaped diamond set in darkly patinated silver ribbons over gold...notable localities of diamond mining in Brazil, and outlines plans for future diamond production. pg. 3...collector stones • Orangy red cordierite • Cape diamond with yellow phosphorescence • Sapphire filled with...in CVD synthetic diamond • HPHT synthetic melee • Intense green HPHT synthetic diamond • Titaniumdiffused |  | | Book | | Alkmim Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent Regional...Alkmim • Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent 123...Estado do Rio de Janeiro Maracanã, Rio de Janeiro Brazil Fernando F. Alkmim Escola de Minas Universidade...Preto Ouro Preto Brazil Umberto G. Cordani Universidade de São Paulo São Paulo Brazil ISSN 2364-6438...significant contributor to the mining industry in Brazil. This book provides a state of knowledge overview |  | | Journal (article/letter/editorial) | | Instituto Federal do Piauí - IFPI, Brasil R. Barbosa, Universidade Federal do Piauí - UFPI, Brasil D-2...University, Japan Y. Konyuba, JEOL, Japan 9 F-36 Diamond X-ray Lens Development R. Kostin, Euclid Techlabs...Colloids and Interfaces, Germany I. Pape, K. Sawhney, Diamond Light Source Ltd, UK P. Roschger, Hanusch Hospital...Keeble, M. Wharmby, T. Spain, J. Filik, H. Wilhelm, Diamond Light Source, UK 9:00 D-55 X-ray PDF to Quantify |  | | Journal (issue) | | __________________ 166 An Era of Sweeping Change in Diamond and Colored Stone Production and Markets Russell...Dirlam A summary of the decade’s most important diamond, colored stone, and pearl sources. Includes a wall...decade of the 2000s saw dramatic changes in the diamond and colored stone industries, as established conventions...The gems in the foreground are: (1) a 1.01 ct diamond, GIA Collection no. 37583 (2) a 4.50 ct emerald...courtesy of Equatorian Imports; (3) a 1.53 pink diamond from Argyle, courtesy of Rio Tinto; (4) an 11.16 |  | | Book | | original: Norte-Americano: “GEOLOGY AND PHYSICAL OF BRAZIL” GEOGRAPHY Esta tradução & propriedade literarta...publicação da obra “Geology and Physical Geography of Brazil”, pasa satisfazer ao pedido de Louis Agassiz para...1868— (Accowt of o lecture ou the glaciotion of Brazil”) (“Resumo de uma conferência sobre à glaciação...PHYSICAL GEOGRAPHY OF BRAZIL” (Thayer Expedition-Scientific "results of a journey in Brazil by Louis Agassiz...dessa excursão foi publicada na obra “Journey in Brazil”, (*) não sendo, portanto, necessário repeti-lo |  | Bantim, Renan Alfredo Machado, de Andrade, Rafael César Lima Pedroso, Ferreira, Jennyfer Sobreira, Saraiva, Antônio Álamo Feitosa, Kellner, Alexander Wilhelm Armin, Sayão, Juliana Manso (2021) Osteohistology and growth pattern of a large pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Northeastern Brazil. Cretaceous Research, 118. 104667pp. doi:10.1016/j.cretres.2020.104667 | Journal (article/letter/editorial) | | Romualdo formation of the Araripe basin, northeastern Brazil Renan Alfredo Machado Bantim, Rafael César Lima...Romualdo formation of the Araripe basin, northeastern Brazil, Cretaceous Research, https:// doi.org/10.1016/j...PATTERNS OF A LARGE EARLY CRETACEOUS PTEROSAUR FROM BRAZIL (ARARIPE BASIN) All persons who meet authorship...FORMATION OF THE 3 ARARIPE BASIN, NORTHEASTERN BRAZIL 4 RENAN ALFREDO MACHADO BANTIMa,b,*; RAFAEL CÉSAR...s/n, Cidade Universitária, Recife, Pernambuco, Brazil; b lP Laboratório de Paleontologia da URCA, Universidade |  | | Journal (issue) | | India Bhadresh Pandit, Tanzania Clement Sabbagh, Brazil Capt. Ramji Sharma, Japan Avner Sofiov, Israel...this year, ICA president Andrew Cody visited the Brazil Gem Show where he made a donation on behalf of...jewelry manufacturing in other countries. Today, Brazil is developing a reputation for the same high-quality...develop around larger stones, such as cabochons. Brazil is among the largest Oscar Niemeyer Copan ring...imperial topaz. In addition to imperial topaz, Brazil also has unique stones, such as Paraíba Tourmaline |  | | Book (edition) | | Data (CIP) (Information Sectorial Nucleus, SP, Brazil) I59 IBGM. Handbook of Gems / IBGM, DNPM. – 4...I. Title. CDU 549.091 Federative Republic of Brazil Ministry of Mines and Energy National Department...respect to the most commonly found and traded gems in Brazil. Such information is generally described in documents...to disclose our vast gemological assets both in Brazil and abroad. Therefore, this publication covers...34 Citrine 35 Cornelian 36 Dendrite Quartz 37 Diamond 40 Diopside 41 Emerald 43 Epidote 44 Euclase 45 |  | | Journal (article/letter/editorial) | | insects in the Crato Formation (Lower Cretaceous) of Brazil Nathan Barling a, *, David M. Martill a, Sam W...2020 Available online 19 August 2020 €tte of NE Brazil is well known for the exceptional preservation...Keywords: Crato Formation Lower Cretaceous Aptian Brazil Insect Taphonomy 1. Introduction The Lower Cretaceous...Cretaceous (Aptian) Crato Formation of northeastern Brazil is a Konservat-Lagerst€ atte formed in a lacustrine...borders of the states of Cear a, Pernambuco, and Piauí (Fig. 1). It is especially well exposed in stone |  | | Journal (issue) | | composed of 12.5 mm turquoise beads separated by diamond rondelles, with a white gold clasp containing 1...anticipate periods of economic instability in the diamond and colored stone markets, and must be aware of...Rooms— on appraisals, disclosure, branding, and diamond cut— where attendees and panelists will interact...Peter Ueberroth and the senior statesman of the diamond industry, Maurice Tempelsman. And Symposium is...“Modeling the Appearance of the Round Brilliant Cut Diamond: An Analysis of Brilliance” (Fall 1998), in which |  | | Journal (issue) | | 2009 VOLUME XLV Celebrating 75 Years of G&G The Diamond Type System SUMMER 2009 Identifying Cu-Bearing...Breeding and James E. Shigley A guide to determining diamond type, and its implications for identifying treated...spectroscopy. 120 Gem-Quality Andalusite from Brazil Shyamala Fernandes and Gagan Choudhary Documents...Lab Notes Bicolored diamond • “Black” diamond with deep violet color • Carved diamond crucifix • Rare type...type IIb gray-green diamond • Unconventional diamond cuts • Pink CVD synthetic diamond • Rare star peridot |  | | Journal (article/letter/editorial) | | metamorphosed phosphatic sandstone, Espinhaço fold belt (Brazil) Gerhard Franz1 · Giulio Morteani2 · Dieter Rhede3...sandstone from the Mesoproterozoic Espinhaço fold belt, Brazil, in a dissolution–precipitation reaction: zircon1...the Espinhaço supergroup (São Francisco craton, Brazil; Fig. 1). Backscattered electron images (BSE),...in central-eastern Brazil running from the southern border of the States of Piauí and Pernambuco to the...Espinhaço, compared to the literature data (filled diamond Beliolipetskii and Voloshin 1996; filled square |  | | Journal (issue) | | Pearl Testing 36 Emeralds from South America – Brazil and Colombia 48 Clinohumite – The Mountain Fire...rise of new economies such as China, India, and Brazil. The challenges have been numerous as these new...every ICA member, I would like to thank the IBGM in Brazil along with every company, individual, and government...Gemological Science International (GSI) is the first diamond grading lab to embrace this technology, announcing...and consumers for real-time verification of GSI diamond reports. With a smart phone, a person can scan |  | | Journal (issue) | | lab-grown diamonds from Apollo Diamond Inc. Color Alterations in CVD Synthetic Diamond with Heat and UV Exposure:...______________ 28 Possible “Sister” Stones of the Hope Diamond Scott D. Sucher, Stephen W. Attaway, Nancy L. Attaway...the possibility that sister stones to the Hope diamond resulted from the cutting of the Tavernier Blue...Notes Coated and fracture-filled orangy red diamond • Diamond with green fluorescence • Irradiated black...greenish yellow diamond colored by IR-inactive nitrogen • Red CVD synthetic diamond with multiple treatments |
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