 | | Book | | BARTORELLI ::⢠. . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA Š...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) | | Namibia, as well as Madagascar), South America (Brazil and Colombia), central and southern Asia (Sri Lanka...Pakistan; and pink to red tourmalines from Nigeria and Brazil. Diamond was mined in northern Canada for the first...mining also continued at traditional sources in Brazil and Africa. Large quantities of Brazilian emeralds...the early â90s, particularly from GoiĂĄs and Minas Gerais (primarily the Nova Era area). By the middle...decline from Minas Gerais due to decreased reserves and reduced demand. Emerald production in Brazil has since |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...principally in the states of Minas Gerais and Mato Grosso, are presented. W hile Brazil is widely known for...Arraial do Tijuco (later named Diamantina) in the state of Minas Gerais (CalĂłgeras, 1904; Leonardos, 1959;...and Bartorelli, 2010). For the next 150 years, Minas Gerais was the worldâs major supplier of gem diamonds |  | | Report (issue) | | Persi~ ⢠â˘â˘ â˘â˘â˘ Siam â˘â˘â˘ ⢠⢠â˘â˘ â˘â˘â˘ Argentina Brazil â˘â˘â˘ â˘â˘ -¡ â˘â˘â˘ .. ' .. " â˘â˘ â˘â˘ ⢠⢠⢠â˘...stones~ such as some varieties of quartz ar1d chrysoberyl, the tubes a-1~e parallel to one another, a.n...compact. A special variety of diamo~d peculiar to Brazil is known as carbonado or '' carbon ''; it is black... Oymophane is a fin.ely fibrous va1¡iety of chrysoberyl which exhibits mar~ed chatoyance, and is called...eye to distinguish it from quartz cat's eye). Chrysoberyl, although very durable, is not used very much |  | | Journal (issue) | | amber imitation ⢠Assembled diamond imitations from Brazil ⢠Enamel-backed quartz as a star sapphire imitation...studied one each of sinhalite, cassiterite, chrysoberyl, and garnet, and one stone that was represented...earthâbearing minerals, possibly samarskite. Chrysoberyl is well known for chatoyancy, but it rarely shows...that had as few as six rays (in the case of the chrysoberyl), to more than a dozen rays (in the case of several...the illusion was very well executed. A 3.29 ct chrysoberyl showed an almost perfectly symmetrical six-rayed |  | | Book (volume) | | colors at very modest prices. there Synthetic chrysoberyl (alexandrite) has never been produced commercially...fashionable as a gem. state of Minas Geraes, (1968) It is Brazil. found principally in San Diego...Other forms â 7a, b. Rose recoupee ,, ,, 162 Brazil : S. ., , sphere of Bort Ruby, 6. 7. crystal...Stewart (from South Africa) Mr. Dresden's (from Brazil) c. ... ... new form PLATE XL 76 (Facing ... . . Size). ..... Star of the South (from Brazil) Florentine 77 ,, 78 ,, 78 â 15. 11a, |  | | Book (edition) | | Diamond I Diamond II Ruby and Sapphire Beryl Chrysoberyl Spinel Topaz Tourmaline The Garnets Feldspar...m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality tourmaline...acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals occurring in small...amethyst from volcanic rocks in Rio Grande do Sul, Brazil. The amethyst crystals are more strongly coloured...Alluvial sands containing diamonds near Sopa, Minas Gerais, Brazil The above discussion has concentrated |  | | Report (issue) | | Janeiro______________________ Sao Paulo__________________________ Minas Gerais_______________________ Espirito Santo______________________...Monazite localities-Continued South America-Continued Brazil-Continued Beach placers _________________________...and Idaho. Most of the world output has come from Brazil, India, and the Republic of South Africa, but 12...beaches and elevated bars along the southern coast of Brazil were the world's main source of commercial monazite...international importance. Stream placers in the interior of Brazil are virtually unexplored; they may constitute an |  | | Book | | brown patterns. Clear quartz on the top left. From Brazil. Agate after the river Achates in Sicily. A variety...stria- Š tions and terminal faces. From Minas Gerais, Brazil. Scale 1:5:1 4 113 topaz wine-yellow, stumpy...important diamond fields of today are in South Africa, Brazil and Siberia. PYROPE, a blood-red garnet (from...as smear-like patches. Fine specimens come from Brazil, Madagascar and the U.S.A. AMAZONSTONE (P1.111)...do Sul, Brazil. Scale 0°6:1 123 AMETHYST pyramidal crystals with violet terminations. From Minas Gerais |  | | | | brown patterns. Clear quartz on the top left. From Brazil. Agate after the river Achates in Sicily. > 33...longitudinal striations and terminal faces. From Minas Gerais, Brazil. Scale 1°5:1 113 ropaz wine-yellow, stumpy...important diamond fields of today are in South Africa, Brazil and Siberia. PyROPE, a blood-red garnet (from Greek...as smear-like patches. Fine specimens come from Brazil, Madagascar and the U.S.A. AMAZONSTONE (P1!.111)...Sul, Brazil. Scale 0°6:1 123 amETHYST pyramidal crystals with violet terminations. From 7 Minas Gerais |  | | Book | | |1.9..2.0) K+290 1.5..2.0/ 9.0 |N+2n NitTrE SALT Sopa SALT Borax M+ 2m 2.0..2.511.7..1.8 N+86424¢...ornament and merchandize, as the Diamond, Sapphire, Chrysoberyl, Opal, &c. It is very remarkable also that these...Zezlanite. Bat 486 Automalite, P.83. Bat 334 Chrysoberyl, P. 89. Cymophane. Bdt 484 Corundum, P. 74 |  | | Book (edition) | | are termed holohedral forms, from os, all, and sopa, face. 29. Class 1. Monometrica . According to the...place . (See a figure of a compound crystal of chrysoberyl.) It is very possible that twins of the first...angles of 120° and 60° . Such is the case in chrysoberyl. 2. Postnatal Compound Crystals. 78. Postnatal...19 . Prim . 8 . Topaz , 3902 3-5--3-8. Rect. Chrysoberyl, 383. Prim . 8.5 . M dist. CLASS TRIMETRICA...Prim . 45â46 Phenacite , 582. Spinel ,+ 384. Chrysoberyl, 383. Prim . 8 Prim . Prim . 8 5 2.943 VI, |  | | Book (edition) | | coal, Page. lead , 339 Chrome, oxide of, 336 Chrysoberyl, 331 Chrysolite, oxide of manganese, 304 Chrystallography...Cornwall; New Castle, and other places in England. Brazil, Bohemia, and the Hebrides. First discovered at...It sometimes forms extensive beds. Localities. Brazil and near St. Gothard . Whitby, Eng. The flexible...smoked glass . Localities. Cairngorm, Scot., and Brazil. U. S. White Hills, N. H. Shrewsbury and Wardsbo...crystals . Localities. Ceylon, in the sands, and in Brazil. U. S. Boxborough, Mass. - Nuttall. Variety 1 |  | | Book | | : ĂŠ ; d . : 34. 35. 36. 37. 38. : : (c) Brazil Wood Paper. (ad) Turmeric Paper . : : â : ...heated in the same manner as the clay basins. 9. Sopa Paprrer.âIn heating the quantitative silver assays...Re-agent Papers :âBlue litmus; reddened litmus ; Brazil wood ; and turmeric papers. (a) Blue litmus paper...colour being restored to a blue. (c) Brazil wood paper.âIf brazil wood be boiled in water for a sufficient...parts of the retort, should be tested by litmus or brazil wood paper, to ascertain if it gives an acid or |  | | Book | | and was officially named, Villa de Yerena Real y Minas de Sombrerete. The records of the first 100 years...mining camp was given the name of Santa Fe y Real de Minas de Quanaxhuato. A military garrison and four small...the entire district became known as the Real de Minas de Tasco. The Spaniards developed the silver lodes...Sonora Silver/gold discovered and work begins in Minas Prietas, Hermosillo, Sonora 52 / Discoveries...MacCrellism and Quigley Printers. Dahlgren, C. B., 1887. Minas Historicas de la Republica Meneana MĂŠxico: Oficina |  | | Book | | 1940 import of 805 tons came from Argentina and Brazil. Berry: A silicate of beryllium (glucinum) and...schists, and gneisses. Associations: Phenacite, chrysoberyl, apatite, tourmaline, rutile, quartz, feld- ... and treated in much the same way as rock salt. Sopa Nirer, Nirratire, CuHite Niter, CHILe SALTpeter...La Plata, South America. Trona, Urao (Narturar Sopa): A mixture of sodium carbonate and sodium bicarbonate...chiefly from North Carolina, South Carolina, and Brazil. The Carolina deposits are monazite placers, in |  | | Book | | Some Common Substance Beryllium Chromium Chrysoberyl Columbium Copper Diamond Garnet Tron Tron-titanium...Resutr Chief Minerals Beryl, aquamarine Chromite Chrysoberyl Columbite Chalcopyrite Diamond Pyrope, others...Macmatic Concentration Examples of Localities Brazil, India, Argentina South Africa, Turkey, Rhodesia...Russia South Africa World wide Indiaâpegmatites Brazil, Belgian Congo Malaya Quebec, Norway, Adirondacks...relations. âBeryl-Tantalite Pegmatites of Northeastern Brazil.â W. D. Johnston, Jr. Geol. Soc. Amer. Bull. 56:1015-1069 |  | | Report (volume) | | the orthosilicate phenakite (Be,SiO,), and in chrysoberyl (BeAl,O, with the olivine structure). Tetrahedra...pe 10° K' (Hazen Oo 24184 : fo) 200 aoa CHRYSOBERYL 400 600 800 Temperature (°C) Figure 4. The...temperature is similar in beryl, bromellite, chrysoberyl and phenakite. Data on BeO are from Hazen and...spinels, Figure 15 for the unit-cell axes of chrysoberyl, and Figure 16 for the unit-cell parameters of...996 Figure 15 (right). Unit-cell dimensions of chrysoberyl versus temperature and pressure (after Hazen |  | | Book (volume) | | Grosso do Sul, Brazil) USE Rua 26 de Agosto (Campo Grande, Mato Grosso do Sul, Brazil) 26 rue du Depart...ABC Strike, Sao Paulo, Brazil, 1980 USE Metal-workersâ Strike, Sao Paulo, Brazil, 1980 Abcher family USE...National Marine Park (Brazil) USE Parque Nacional Marinho dos Abrolhos (Brazil) Abron (African people)...individual languages and groups of languages, â Brazil â Guyana Acceleration of convergence in numerical...countries USE Andes Region Acts, Juristic USE (Brazil) Xavante language Acua-Shavante Indians USE Xavante |  | | Book (volume) | | grey or brown granular matrix of oligoclase, with Brazil Wood in Charnwood Forest, Klumpsen in Oberlausitz...of the Lake country. Diorite.âTo the north of Brazil Wood is a knoll of dark diorite which consists...iron. Among the accidental minerals are beryl, chrysoberyl, octahedral fluor spar, topaz, and _peridote...Mountains, with the Alleghanies and Cordilleras of Brazil, may be taken as skeleton contours, which are correlative...ANDESINE, AND LABRADORITE. j | Oxicociase: Sopa Lime FELSPAR. Locality. : eos: Rispond, Granite |  | | Book (edition) | | diamonds are inferior to alluvial stones from Brazil and India. 20 slightly ( Vv S jo diod uesiseuly...discoloured bodies is presently being carried out by Brazil Diaand cracked stones and stones smaller than one...(Finely crystalline varieties) Alexandrite see Chrysoberyl Almandite see Garnet Amazon Stone or Amazonite...emeralds and occasionally pearls, black opals and chrysoberyl, and semi-precious stones, which include all...549 kg Coetzee (1964) states that a piece of chrysoberyl aggregate was found in the Assegai pegmatite |  | | Book (volume) | | Southern spots in Minnesota The condition states, in Brazil, and in certain sheltered and Massachusetts, ... Andalusite. 66. Fibrolite. 67. Cyanite. . Chrysoberyl. . Cassiterite. 68. Sphene. 69. Staurolite....NOTTINGHAM. ORANGE. Limonite. Blue beryl, chrysoberyl (at Orange summit), Amazon stone, mca, albite...Chlorophyllite, Chocorua granite, Chromite, Chrysoberyl, . . j : 207 99 44 132 â Clay slate, Claystone...Sean aecree Seema neie Sopa coca SE Reet Bont ten ieee Spee tas meee onea |  | | Book (edition) | | evidence of 2.2-billion-year-old igneous rocks in Brazil that closely resembled similarly aged rocks in...filled with amethyst, a purple variety of quartz, Brazil. (Photo by Jeff Scovil) Crystal Structures The...Catâs-eye Chalcedony Citrine Garnet Jade Moonstone Chrysoberyl Quartz Chrysobery| Quartz (agate) Quartz Garnet...Rio Negro, a tributary of the Amazon near Manaus, Brazil. (Photo by Galen Rowell/Mountain Light Photography...metamorphic regions are found in eastern Canada, Brazil, Africa, India, Australia, and Greenland. Moreover |
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