 | | Book | | 1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...turquoise vein near the village of Casa Nova, in Bahia, later flooded by the waters of the Sobradinho dam |  | | 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 |  | | Journal (article/letter/editorial) | | as the four classes of amethyst: In this connection it may be of interest Bahia, Uruguay, Siberian, and...charged in Germany, circa 1912, the fact that an amethyst comes from a for finished stones, wholesale. certain...out under the title "Gewerbliche example, a Bahia amethyst should possess Materialkunde." This book was...reflect many practices, AMETHYST trade secrets, processes, etc., which are Bahia $ .20-$ 1.50 generally...FIRE OPAL $ .25 - $ 3.50 HEAT-TREATED CITRINES Brazil $ .10-$ 1.00 Spanish 102.00 Madeira 15 2.00 JADEITE |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | | Book | | several tons each are known from pegmatites in Brazil and Madagascar as weil as from Alpine type veins...quartz varieties such as reck crystaL smoky quartz, amethyst, etc. beim Erkennen und Bestimmen solcher Einschlüsse...Quarzvarietäten, also in Bergkristall, Rauchquarz, Amethyst etc., zu verstehen. lnclusions in generally polycrystalline...dispersed on our planet and particularly deposits in Brazil and Madagascar are famous and researched in detail;... l n Brazil quartz veins and Alpine type veins are particularly known from Minas Gerais, Bahia and Goias |  | | Book (volume) | | Pocket, Two Point Claim, Teller Co., Colorado, 59 Amethyst (scepter) Goboboseb Mts., Brandberg, Erongo Region...Mursinka, Ural Mtns., Russia, 58 Hematite Brumado, Bahia, Brazil, 61 Cleator Moor, Cumberland Ore Field, West...Springs, Garland Co., Arkansas, 38-39 (see also, Amethyst, Rose Quartz, Smoky) Rhodochrosite (with Hubnerite...Sellaite (with Fuchsite) Serra das Éguas, Brumado, Bahia, Brazil, 24 Shattuckite (with Malachite) Omaue Mine..., California, 25 Sphalerite (on Amethyst) Commodore 5 Mine, Amethyst Vein, Creede Dist., Mineral Co. |  | | Journal (article/letter/editorial) | | irradiation, such as X-rays or 7-rays, on quartz: smoky, amethyst, and greenish yellow. The smoky designation is...second well-known irradiation-induced color is the amethyst color-center involving Fe (Lell et al., I966;...color is distinct from yellow citrine and 'greened amethyst' quartz, both allochromatic colorations from Fe...color absorption was observed in two specimens from Brazil. Combinations of A1 and A2 with some G-Y absorption...of the natural specimens were undoubtedly from Brazil. Most were quartz crystals, although some massive |  | | Journal (article/letter/editorial) | | 46.1.111 GREENISH QUARTZ FROM THE THUNDER BAY AMETHYST MINE PANORAMA, THUNDER BAY, ONTARIO, CANADA Laura...context of amethyst-bearing deposits is not simply the result of the exposure of amethyst to thermal...solution. Greenish quartz occurs at the Thunder Bay Amethyst Mine Panorama (TBAMP), Thunder Bay, Ontario, Canada...color varieties of quartz including greenish, amethyst, colorless, and smoky. Spectroscopic, irradiation...fluid inclusions in comparison with the adjacent amethyst. Analysis of different colors on major (r = {1011}) |  | | Book | | Occurrence: The Americas 63 USA 64 Mexico 72 Panama 75 Brazil 75 Canada 80 7 Occurrence: Rest of the world 81...Pleochroism Occurrence Rock crystal (colourless), amethyst (violet-purple), citrine (yellow to brown), rose...opaque). Single crystal specimens of rock crystal, amethyst, citrine and (rarely) rose quartz occur in prismatic...varieties mainly massive in form. Fairly pronounced in amethyst (blue, reddish-violet). In almost all rock types...quartz crystals come from the State of Minas Gerais, Brazil, and occur in vugs or pockets which are found in |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225...Thorman (1994): Geology and Mineral Resources of Brazil: A Review, International Geology Review, 36:6,...rights reserved. Geology and Mineral Resources of Brazil: A Review INACIO DE MEDEIROS DELGADO, AUGUSTO J...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey |  | | Journal (issue) | | 0026-4628 'Continued on p. 415 Articles Diamonds in Brazil .................................................Universitaria, Ilha do Fundao 21.910 Rio de Janeiro, Brazil Since their discovery in Minas Gerais, near the...mining, fables and dreams. By the end of the 1700’s Brazil had become the world’s leading producer of diamonds...century. fficially the discovery of diamonds in Brazil is dated at 1727. Gold prospectors had found occasional...false idea that Brazil is a producer.” The sheer volume of diamonds coming from Brazil soon overwhelmed |  | | Journal (issue) | | elinges chogeppu, lankaratte, rubin. "Genuine ruby". Amethyst: scuandi (in Malabar. & Singhal.); Swedish like...the listing, giving colour qualities of ruby and amethyst, and properties such as transparency and presence...difficulty difficulty identifying identifying amethyst Thunberg in which the the crystals are are characteristically...of natural and synthetic sapphire, ruby, ruby, amethyst and citrine Dipl.-Min (I)and and Dr Dr Karl Karl...stones up up to to now. now. stones VI. Natural amethyst and citrine Structural properties like growth |  | | Journal (article/letter/editorial) | | Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History specimen...specimen, Jeff Scovil photo. May/June: Quartz (amethyst), near Badger Creek, north of Coaldale, Fremont...Colorado, 337, 382 Actinolite, Bahia, Brazil, 36 Agardite-(Y), Bahia, Brazil, 38 Agate, 259-67 Aikinite,...Maine, 4 12 Alexandrite, Hematitia, Minas Gerais, Brazil, 23 Almandine, Maine, 412 Alunite, Utah, 244 64...Michigan, 225 Anatase, Bahia, Brazil, 3.5 Andalusite, Michigan, 96 Anhydrite, Bahia, Brazil, 39; Colorado, 397; |  | | Journal (issue) | | Brazilian emeralds and their occurrences: Carnaiba, Bahia Dr Dietmar Schwarz* and Thomas Eidt, Dipl.Geol...Federal University of Ouro Preto, Minas Gerais, Brazil **University of Mainz, FRG 1. Introduction The...occurrences of Carnaiba and Socoto in the state of Bahia are located at a distance of about 40 kilometres...gemstones mined in the state of Bahia (besides emerald, others include amethyst, citrine, aquamarine, diamond...been the most important emerald mining region in Brazil until the discovery of the Santa Terezinha occurrence |  | | Journal (article/letter/editorial) | | Volume 95, March/April 2020 143 Figure 6. Amethyst, La Gaiba, Bolivia, 1998; original size unknown;...quartz, Ibitiara, Bahia, Brazil. Below: Amethyst on basalt, Irai, Rio Grande do Sul, Brazil. Original sizes...River Nahe region, Germany. Below: Quartz, variety amethyst, Greifenbachtal, near Geyer, Germany. Original |  | | Catalog/List | | 68x35x20mm £67 5) UVITE and Quartz, Brumado, Bahia, Brazil. Glistening smoky 2mm uvite crystals form a...size- 22x20x10mm £198 11) HEMATITE, Brumado, Bahia, Brazil. Mirror lustrous matrix free “iron rose”. Specimen...BRAZILIANITE on MUSCOVITE, Conselhiera Pena, Minas Gerais, Brazil. A leafy of silvery muscovite has a clutch of very...to7mm edges. Specimen size- 24x20x8mm £87 24) AMETHYST sceptre overgrowth on Milky Quartz, Ashaway Village |  | | Corporate Document | | □ OPORTUNIDADES DE INVESTIMENTOS BAHIA HAS MINERALS INVESTMENT OPPORTUNITIES I I I I I 4 --------.......... lfl APRESENTACAD Prese11tation A Bahia participa com mais de 4% do Produto lnterno Bruto...saudavel e seguran~a jurfdica para os investidores. Bahia has more than 4% of the Brazilian Cross Domestic...state economy in the Northeast and sixth largest in Brazil. It offers solid economics, healthy business environment...products. It has the 2nd largest road network in Brazil; the 3rd regional airport system; three ports - |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production...colored stones • Cultured pearl market • Moroccan amethyst • Emerald dealing in Afghanistan • Montana sapphire... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...Gerais and Mato Grosso, are presented. W hile Brazil is widely known for the production of colored gemstones...carbonados) were also recovered, mainly from the state of Bahia (Karfunkel et al., 1994). As Africa emerged as the |  | | Book | | crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto) 22: 183-185 ALTO...Burian goyazite from [Alto Bernardino, Paraiba,] Brazil (by J. S. White, Jr.) 12:379 ALUMOHYDROCALCITE...muscovite from the Ze Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized...Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil 25:165-170...platinum from C6rrego Born Sucesso, Minas Gerais, Brazil 23:471-474 AMARGOSA DESERT Hydroboracite from the |  | | Book (volume) | | appreciate a mineral from China, Pakistan, America or Brazil equally without any preconceived bias, prejudice...(Manganoadamite) Ojuela Mine, Mapimi, Durango, 51 Amethyst Jackson Crossroads, Wilkes Co., Georgia, 10, 56...56 Apatite Sao Jose de Batalha, Paraiba, Brazil, 41 Apophyllite Jalgaon, N. Maharashtra, India, 41 Aquamarine...Morganite) Brazilianite Linopolis Dist., Minas Gerais, Brazil, 37 Calcite 884 Mine, Huangpolong, near Leiping... Colombia, 64 Jos, Nigeria, 44 Fluorite (with Amethyst) Fong Jiashan Copper Mine, Hubei Prov., China |  | | Report (issue) | | of America PHOTO CREDITS Cover: Quartz variety amethyst, 10.5 cm tall Goboboseb Mountains, Erongo Region...collection, Jeff Scovil photo Title (facing) Page Amethyst mouse with gold tail, 130 grams, 6.3 cm wide Carved...Brazilian amethyst Private collection, Robert Weldon photo © 2009 GIA Page 2 Quartz variety amethyst, 3.5...3, Table of Contents Insets Top: Circa 212 CE amethyst intaglio bearing the portrait of Roman Emperor...Marie-Lan Nguyen photo Upper middle: Quartz variety amethyst (Japan-law twin), 1.6 cm tall Andilamena, Toamasina |  | | Journal (article/letter/editorial) | | pyrite,jasper,steatite,amber,jadeite, calcite;amethyst,and fluorspar(see Ta•>leI.), while aboutthe x...France); also Neolithic. About 2o,ooo-I6,ooo B.C. AMETHYST. Solutrean (France): also Neolithic of Europe:...Cornellius). x573. TOURMALINE. I573, found in Brazil: identifiedby Dutch in preciousstones brought from...Africa. •785. EUCLASE. Introduced into Europe from Brazil by Dombey. x785. DIOPTASE. ' Found in Altyn Tube...SPODUMENE. (Clear yellow)--First reported from Brazil. About I87O. THOMSONITE. Found in U.S. A. x876 |  | | Journal (article/letter/editorial) | | ©Springer-Verlag 1990 Origin of emerald deposits of Brazil G. Giuliani 1. 2 , L. J. H. D. Silva 3 and P. Couto...Couto 4 1 2 3 4 ORSTOM, Universidade de Brasilia, Brazil c.R.P.G., 15 Rue N.D. des Pauvres, BP 20, 54501...Metais Ltda, Bahia, Brazil Secretaria das Minas e Energia, C.P.R.M./SGM, Bahia, Brazil Abstract. Precambrian...Precambrian emerald deposits of Brazil are found in a typical geologic setting with Archean basement and...Gemstone deposits are of great importance in Brazil. Agate, amethyst, tourmaline, and topaz represent the important |  | | Journal (issue) | | deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil JacquesCassedanne, Cassedanne, D.Sc.,* Maurice...Fundiio, Fundão, 21,910, Rio de Janeiro, Janeiro, Brazil *Institute of Geosciences UFRJ-CNPq, Cidade Universitaria...Ipanema, 22,410, 22,410, Rio de Janeiro, Janeiro, Brazil **Maurice Roditi Jewellers, distinguished: Abstract...chrysoberyl are Brazil. the gem chrysoberyl varieties sought after in Brazil. Brazil). It should not |  | | Journal (issue) | | Diamond recovery methods employed in G u y a n a and Brazil A typical "pork-knocker" of the "old school" with...containing fabulous diamond deposits. In G u y a n a and Brazil, rain forests and the vegetation growth of centuries...Quartz, syn. rutile, strontium titanate. Quartz (amethyst, citrine and star-rosequartz) paste. — Tourmaline...opal, topaz, corundum (ruby, sapphire), quartz (amethyst, chalcedony, agate, Chrysoprase, prase, jasper)...1968, 22, 9, p . 1162. T h e Carnaiba Mine, in Bahia, was found four years ago and is the biggest producer |
|
Brejinho das Ametistas, Caetité, Bahia, Brazil