 | | Journal (issue) | | NEEDED: A FLAT-LAP RECENT SMLS FIELD TRIPS SIDMOUTH BARYTE DATES FOR YOUR DIARY SMLS LAPIDARY WORKSHOP SUSSEX... COLLECTING IN HARBOUR STONE QUARRY BAO VISTA, CAPE VERDE ISLANDS Boa Vista is the eastern most island of the...began. The photograph shows the entrance to the mine with Lyn working. Mineralisation seemed scarce...sphalerite, chalcopyrite with minor associated baryte (see figure 2 - 6 x 6 cm). Also within the cleft...and Chris and Clive Minker also found calcite and baryte on goethite (see figure 7 - 10cm), an unusual combination |  | | Journal (issue) | | proceedings|Fei cui testing in Hong Kong 691 Gem Notes Baryte from South Dakota, USA| Gems from Mong Long, Myanmar|Pyrite...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...689 Gem Notes COLOURED STONES Baryte from South Dakota, USA Baryte (or barite) is an orthorhombic sulphate |  | | Book | | particularly interesting collection of miners' lamps and mine surveying instruments. Ancient and mediaeval mining...worn by mine officials of Saxony on ceremonial occasions. A special attraction is a model mine, 20m below...N. from the main railway station, landmark is a mine headframe. Tues.- Fri. 8.30-17.30 hrs.; Sat.- Sun...Minas Gerais, Brazil 9 Werfen, Salzburg, Austria 9 Virgem da Lapa, Minas Gerais, Brazil 9 Schemnitz (Banska...Proustite Azurite 1-1 Kongsberg, Norway 1-2 Etiro mine, Namibia 1-5 Binntal, Wallis, Switzerland 11-2 lbbenburen |  | | Journal (article/letter/editorial) | | Paleoproterozoic crust of the São Francisco Craton, Bahia, Brazil: geodynamic features J.S.F. Barbosa a,∗ , P. Sabaté...Bahia, Brazil b IRD—Representation in Brazil CP7091, Lago Sul, 71619-970 Brasilia, DF, Brazil Received...Geocronological; Geotectonic models; Mineral deposits; Bahia; Brazil 1. Introduction The essential features of the...1991; Marinho, 1991; Nutman and Cordani, 1993)) Boa Vista/Mata Verde TTG (Martin et al., 1991; Marinho,...calc-silicate rocks, manganesiferous sediments containing baryte, are all associated with ocean floor basalts (Fig |  | | Book | | B=y= soo sulphur cerussite olivine enstatite baryte chalcopyrite scapolite apophyllite C a = b...Caucasus - crystals up to 1.5 cm (USSR), Getchell Mine - Nevada (USA) •Application: ore (extraction of...- aggregation of crysta ls from pil e of a coal mine; Kladn o (Czechoslovakia - width of field 15 mm)...Vary (Czechoslovakia) 2. Dickite - powdered, with baryte in cavity in siderite; Berovice (Czechoslovakia)...found in the Mansfeld slates in Zwickau (GDR), Wolf Mine (near Herdorf, Reichenbach, FRG), Bisbee, Georgetown | | | Book | | illustrated Encyclopedi of the World’s Rocks and Mine re L A R E N MI OF THE WORLD Rudolf Duda and...enstatite chalcopyrite scapolite orthoclase baryte a=b#c tetragonal (7) a = B = 4 => 90° rutile...Caucasus — crystals up to 1.5 cm (USSR), Getchell Mine — Nevada (USA) e Application: ore (extraction of...Sal-ammoniac — aggregation of crystals from pile of a coal mine; Kladno (Czechoslovakia — width of field 15 mm)...Vary (Czechoslovakia) 2. Dickite — powdered, with baryte in cavity in siderite; Berovice (Czechoslovakia) |  | | Book | | Geosciences Institute University of São Paulo São Paulo Brazil Pedro Oyhantçabal Departamento de Geodinámica Interna...recognized similarities in the ‘old granites’ of Brazil and southern Africa. On the other hand, du Toit...‘Brazilian system’ defined by Alcide d’Orbigny in Brazil (Beaumont 1844), arguably corresponding to the...geochronological data of the Precambrian basement of southern Brazil, Uruguay and Argentina were reported by Hart (1966)...and geochemical data of the Nico Pérez Terrane in Brazil and Uruguay in order to constrain its regional |  | | Book | | cm Page 251: Calcite, Irai, Rio Grande do Sul, Brazil * 12.5 x 10 x 10.5 em Page 252: Gypsum rosette...environment. solidified. In some basalts of India and Brazil, these cavities are large enough for a person...ABOVE: Imperial topaz, Ouro Preto, Minas Gerais, Brazil ° 3.3 x 2.7 x 1.8 om, 159.10 ct RIGHT: Round brilliant-cut...mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular |  | | Journal (issue) | | above small caves exposed in the open pit fluorspar mine in Carboniferous Limestone adjacent to Dirtlow Rake...recently introduced mark. 275 REPORT Black baryte from Derbyshire A long-standing problem in Peak...District mineralogy has been the source of the black baryte recorded by Prof G. Koenig in 1878. He provided...photographed some 45 years ago when the brown stalactitic baryte (oakstone) of Arborlow was being studied by Ford...listing by Greg & Lettsom (1858) who noted black baryte at Middleton-by-Youlgreave without any other details |  | | Journal (issue) | | crystal, 75 mm long, from the Cruzeiro mine, Minas Gérais, Brazil. See 'The location, geology and mineralogy...mineralogy of gem tourmalines in Brazil' on pp. 263-98 ISSN: 1355-4565 262 J. G e m m , 1996, 25, 4 ...location, geology and mineralogy of gem tourmalines in Brazil Jacques P. Cassedanne, Dr. Sc. *, and Maurice Roditi...Non-pegmatitic deposits of tourmaline include the Brumado mine (Bahia) which produces fine red uvite crystals and...Tourmaline, pegmatite, eluvial deposits, gem mining, Brazil © Gemmological Association and Gem Testing Laboratory |  | | Book | | .......................................... 167 Brazil..................................................particular of Africa, the U.S.S.R., Canada and Brazil, much of it inspired by the search for exploitable...Montreal area of Canada and for central Coais, Brazil. N11111ber and na111e Each occurrence has been...a n;:itional number, for example Jacupiranga is Brazil 88. This is followed by the preferred name of the...Verlag, Berlin. 252 pp. DEANS, T. 1966. Economic mine ralogy of African carbonatites. 111 O . F. Tuttle |  | | Book | | ; A light is reflected. The word crystal in mine Faces, edges, angles, axes of Crystals. ralogy designates...of trichromatic, the iolite, the andalusite from Brazil, the diaspore from Schemnitz, and the axinite....axinite, prelmite, boracite, tourmaline, cala- mine, topaz, titanite, calc-spar, beryl, barytes, fluor... Ill QUARTZ. Family.,] in Hungary, in Siberia, Brazil, Madagascar, tjie Pyrenees, and Ceylon. Fine, but...the cause of the colour. A lighter specimen from Brazil yielded 0'0197 iron peroxide, 0'0236 lime, 0-0133 |  | | Journal (volume) | | vein-stones. The ignorance and prejudice of the native mine-owner prohibits use of the wheel-barrow, the windlass...wrought to advantage, now remains unbroken in the mine, and undressed at the surface. All necessaries of...seldom passed without an earthquake. 154-167 . BRAZIL. MINAS GERAES. The richest part of this productive...and Itabira (b , c, d, e. ) , Monlevade (f.) , Boa Vista, Pitangui, Morro das Almas, Agoa Quente, Piracatú...and copper, in deep than in shallow parts of the mine, and contains platina near the surface only. Short |  | | Book (volume) | | Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description:...Veatchite Sr2[B5O8(OH)]2B(OH)3·H2O Locality: Billie mine, Death Valley, California, USA. Description: White...CaMgB6O8(OH)6·3H2O Locality: District # 99, underground mine, Inder boron deposit, Atyrau region, Kazakhstan...Ca4Mn2+3O3(BO3)3(CO3) Locality: Tachgagalt manganese mine, near Ouarzazate, Morocco (type locality). Description: |  | | Book | | 2ft Si + 10 H. Analysis bv D. Forbes, from i^aes Mine .....3 " Silica . . Alumina . .31-03 9'29...Kirkcudbrightshire syenite.— i^orej^fn. Norway; at Naes Mine about 10 miles east of Arendal Jotun Carbonic acid...structure, and brittle also, at the Bristol copper mine, Connecticut, U.S. less ; apand Name. From pear...alluvial soil, and gneiss, in Ceylon, Pegu, Hindostan, Brazil, Greenland; also at Elie in Fifeshire, at Ala in...Anglesite and Heavy Spar, at the Barranca Jaroso Mine, in the Sierra Almagrera, Spain. S.G. 4-S3. Almandine |  | | Book | | Algeriaʼs iron ore output was extracted from the Ouenza Mine in the east of the country, where the hematite ore...mining operations are still artisanal. The El Abed Mine near the AlgerianMoroccan border has yielded a production...mafic-ultramafic complexes. Iron was produced at the Cassinga mine near surface, from high-grade ore (50-60% Fe) of...billion tons. 6 Geosites Fig. 25 The Orapa diamond mine in eastern Botswana, one of three in Botswana providing...small lime operation exists on the island of Boa Vista. 5 Geohazards At least 26 volcanic eruptions |  | | Book (edition) | | edition of the work, aud to soeh additionB pre- on Mine- make to it as later discoveries might render...humite, olivine, amphibole; quartz in the form of baryte, tluor, calcite, dolomite, galena, scheelite, ccruaiito... £seudomarphauM by HxeJumye qf LiyredienU. Baryte Baryte iluor Gypsiun Caleite in the form of 99 99...>9 Hematite. 19 Pvrite. n 9» n Calcite. Baryte. Fluor. 19 Calcite. 99 Magnesite. 99 Fyromorpliite...Marcasite 99 Pyrai^giyzite. Clialybite 99 Baryte. Chalybite Chalvbite Malachite Malachite Ciyaocolla |  | | Book | | minerals were densely con- centrated. This type of mine was very at- tractive, since it avoided the need...materials Quartz crystals from Corinto, Minas Gerais, Brazil. Height: 15 cm. Sorbonne collection using gravity...Washing diamond-bearing gravel in Minas Gerais, Brazil. Photo: tals of such minerals as quartz, fluorite...and a jeweler might then speak of a ‘root’ as Brazil Length: 9 cm. K. Proctor collection, United States... These unique conditions of gem prospecting in Brazil illustrate the willingness of men to endure extreme |  | | Book | | potential deposits of SiO2 raw materials in Argentina, Brazil, Germany and Norway. The third part of the book...collaboration between scientists from Australia, Brazil, Canada, Germany, Norway, Switzerland and the USA...Color-Enhancing of Gemological Crystalline Quartz in Brazil . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . 6.3.3 Quartz Color-Enhancing in Brazil. . . . . . . . . . . . . . . . . . . . . . 139...Ore Minerals: Evidence for South Crofty Tungsten Mine, Cornwall, United Kingdom . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | Axinite-(Mg) Azurite Baddeleyite Bariopyrochlore Barite (baryte) Bassanite Bastnaesite Bazzite Becquerelite Behoite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet | | | Journal (article/letter/editorial) | | Axinite-(Mg) Azurite Baddeleyite Bariopyrochlore Barite (baryte) Bassanite Bastnaesite Bazzite Becquerelite Behoite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet |  | | Book | | 41)(Si3.86Al0.10 Fe0.04O10)(OH)2 from Mikhailovskii mine, Zheleznogorsk, Russia (Chukanov 2014a). IR spectra...Mg-poor schorl from the Limoeiro mine, Murta, Minas Gerais, Brazil, the band of OH groups in the W site...area), olmiite CaMn(HSiO4)(OH) from N’Chwaning II mine, Kalahari manganese fields, South Africa (c), and...brandtite Ca2Mn(AsO4)2·2H2O from skarn (Harstigen mine, Sweden) (b), and roselite Ca2Co(AsO4)2·2H2O from...from Cigana mine, Brazil (a), landesite [nominally, Fe3+Mn2+2 (PO4)2(OH)·] from Bull Moose mine, South Dakota |  | | 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 (volume) | | Mexico. Eight-sided crystals from the Traversella mine, Piedmont, Italy. .&. crystals. It can also be...best quality rose quartz comes from Minas Gerais, Brazil; Madagascar; South Africa; and Maine and other...however, a blue tourmaline gemstone from Paraiba in Brazil can be worth more than a ruby. Similarly, a t,mzanite...available. The main source was once the Kongsberg Mine in Norway, but this closed in 1956. Man has, however...variety of quartz. The best examples come from Brazil, the Ural Mountains of Russia, the islands of Sri |  | | 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 |
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