 | | Journal (article/letter/editorial) | | the northern Serra do Espinhac o (State of Bahia, Brazil) G. Morteani1 and D. Ackermand2 1 Geoexpert...Espinhac o, State of Bahia, NE Brazil) about 10 km west of the town of Boquira. Sky blue lazulite and...and deep blue to lilac dumortierite are enriched in layers which sometimes show relic cross bedding. The...the stability field of scorzalite–lazulite and dumortierite. The association of Al-phosphates with hematite...CaAl3(PO4)(HPO4) (OH)6, berlinite AlPO4 and dumortierite Al6(Al,Mg,Fe3þ ,&)[(O,OH)3jBO3j (SiO4)3] have |  | | Report (volume) | | S3 Lead-Zinc Deposits of the Boquira District State of Bahia, Brazil GEOLOGICAL SURVEY BULLETIN 3...the Departamento National da Producao Mineral, Brazil, under the auspices of the International Cooperation...1110-A Lead-Zinc Deposits of the Boquira District State of Bahia, Brazil By ROBERT F. JOHNSON CONTRIBUTIONS...the Departamento Nacional da Producdo Mineral, Brazil, under the auspices of the International Cooperation...1. Geologic map and section of the Boquira district, Bahia Brazil.___________________________________________ |  | | Journal (article/letter/editorial) | | of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...quartzites of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age 3 determinations on relict and...Veredas Formation (Northern 22 Espinhaço fold belt, Brazil) have been dated using laser ablation inductively...geological and 63 physiographical features of central Brazil. The Espinhaço fold belt extends approximately |  | | Journal (article/letter/editorial) | | apatite, celestine, anhydrite, muscovite and dumortierite with the minor constituents zircon, monazite...trolleite, berlinite, lazulite, scorzalite, dumortierite, muscovite, kyanite and temperature data from...tectonothermal event. Key words: aluminum phosphate, dumortierite, Itremo Group, Madagascar, metamorphism, Panafrican...CaAl3 (PO4)(HPO4)(OH)6, berlinite AlPO4 and dumortierite Al6 (Al, Mg, Fe3 + , 䊐) [(O, OH)3 |BO3 |(SiO4)3]...described e. g. from the Serra do Espinhaço (Bahia, Brazil, Casse- danne & Franco 1966, Cassedanne et |  | | Journal (issue) | | Below: A massive aggregate of blue quartz from Brazil. This typical specimen owes its distinctive coloration...coloration to the presence of tiny crystals of dumortierite (a silicate of boron and aluminium): these are...minerals which may be found in blue quartz. DUMORTIERITE Many specimens of blue quartz owe their distinctive...distinctive coloration to the presence of particles of dumortierite, a rare blue mineral silicate of boron and aluminium...concentration. SODALITE AND RIEBECKITE Although dumortierite is the principal colorant of blue quartz, it |  | | Journal (article/letter/editorial) | | Tourmaline-Bearing Gold Deposit' Passagemde Mariana (Brazil) ROlAnD FnE•SCI•I• A•D P• Abstract A facies..."Quadril/ttero Ferrlfero," State of Minas Gerais, Brazil. Exploited sincethe end of the seventeenth century...Rocksin the Quadrilfitero Ferrlfero(MinasGerais,Brazil) Accordingto Dorr (1969)and SlightlyModifiedby...sulfosalts in the exceptional.Elsewherein Brazil, dumortierite-bear- history of deformationand metamorphismas...This difficulty of theseminerals Veredas, State of Bahia (Cassedanneand 'Franco, will remainuntil recrystallization |  | | 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),...present in dumortierite (Morteani et al. 2007), and the minerals lazulite and dumortierite give the rocks...over approximately 1000 km N–S in central-eastern Brazil running from the southern border of the States |  | | 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 | | 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 |  | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...system AI2O3-B2O3-SÌO2-H2O "Boron-mullites" Dumortierite Alkali-free Al-tourmaline The system Mg0-Al...Borosilicates with Stoichiometric Trigonal Boron Dumortierite group Description Chemical composition Occurrence...e JJ (1990) The thermodynamic properties of dumortierite S i a B f A l ^ G o . z s O n ^ i O H t o ....Am Mineral 61, 88-94 Moore PB, Araki T (1978) Dumortierite, SisBfAl^ 75G0 25O17 2S(OH)Q 75]: a detailed | | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...McGee JJ (1990) The thermodynamic properties of dumortierite SizB[Alg.75M,25017.25(OH)o,75]. Am Mineral...Am Mineral 61, 88-94 Moore PB, Araki T (1978) Dumortierite, Si3B[Alb,7500,25017,25(OH)o,75]: a detailed...Pryce MW (1971) Holtite: a new mineral allied to dumortierite. Mineral Mag 38:21-25 Raade G, Mladeck MH,...(c) datolite; (d) datolite; (e) homilite; (f) dumortierite, righ < ns a cluster in axinite: (b ite; |  | | Journal (issue) | | Smoky and Rose Quartz, 15.4 cm Coronel Murta, Brazil Rudolf Watzl Freistadt, Austria Visit our website...appeared on the market in 2017 at a gem fair held in Brazil. The geodes are lined with various minerals, most...from sub-microscopic inclusions of a fibrous dumortierite-like mineral. In 2017, geodes containing beautiful...mineral fair held in Teofilo Otoni, Minas Gerais, Brazil. The source of the geodes is the El Choique mine...del Sur, Department of Geology, Av. Alem 1253, Bahia Blanca B8000, Argentina. Email: analaurarl @hotmail |  | | 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 (issue) | | appeared on the market in 2017 at a gem fair held in Brazil. The geodes are lined with various minerals, most...from sub-microscopic inclusions of a fibrous dumortierite-like mineral. In 2017, geodes containing beautiful...mineral fair held in Teofilo Otoni, Minas Gerais, Brazil. The source of the geodes is the El Choique mine...del Sur, Department of Geology, Av. Alem 1253, Bahia Blanca B8000, Argentina. Email: analaurarl @hotmail...crystalline pink quartz (Galileia, Minas Gerais, Brazil), and amethyst (Anahi mine, Bolivia). Wavelength |  | | Book | | Most historical diamonds from India (Golconda), Brazil (Diamantina, Minas Gerais), Congo. Angola and I...from Sudbury, Ontario, Canada and Morro Velho, Brazil. Its large accumulations are important Cu ore ...up to 90 mm (3•/,. in) found 10 Virgcrn da Lapa. Brazil Tabular crystals up to 40 mm ( 1• u in) across...found in pegmatites in Jaguara9u, Minas Gerais, Brazil. Crystals up to 20 cm (7 7/a in) in size reported...Africa 79 Ch1ysobe1J•I, 35 mm, Espirito Santo, Brazil Chryzoberyl BeAl2O4 ORTHORHOMBIC ••• varieties: |  | | Book | | Most historical diamonds from India (Golconda). Brazil (Diamantina, Minas Gerais), Congo. Angola and Namibia...from Sudbury, Ontario, Canada and Morro Velho, Brazil. Its large accumulations are important Cu ore Cubanite...up to 90 mm (37.<, in) found in Virgem da Lapa, Brazil. Tabular crystals up to 40 mm (17is in) across...found in pegmatites in Jaguaragu, Minas Gerais, Brazil. Crystals up to 20 cm (77« in) in size reported...Africa 79 Chrysoberyl, 35 mm. Espirito Santo. Brazil Chryzoberyl BeAf204 ORTHORHOMBIC • • • Varieties: |  | | Journal (article/letter/editorial) | | Diopside Dioptase Djurleite Dolomite Donbassite Dumortierite Duranusite Dyscrasite Edingtonite Electrum Embolite...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...Canada, Dore Lake, Australia, Campo Formoso, Bahia-Brazil) (Barnes and Francis, 1995; Leinonen, 1998;...ultrabasic rocks such as in the Bacuri Complex-Amapa, Brazil (Spier and Filho, 2001). Further sites are found | | | Journal (article/letter/editorial) | | Diopside Dioptase Djurleite Dolomite Donbassite Dumortierite Duranusite Dyscrasite Edingtonite Electrum Embolite...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...Canada, Dore Lake, Australia, Campo Formoso, Bahia-Brazil) (Barnes and Francis, 1995; Leinonen, 1998;...ultrabasic rocks such as in the Bacuri Complex-Amapa, Brazil (Spier and Filho, 2001). Further sites are found |  | | Journal (volume) | | 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...variety of quartz. The best examples come from Brazil, the Ural Mountains of Russia, the islands of Sri...with yellowish calcite from Rio Grande do Sul in Brazil. CHARACTERISTICS The amethyst is a purple or violet-blue...amethysts is found is the Rio Grande do Sul region of Brazil. Other significant deposits of amethysts are found |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum, Harvard...TMPS Tia VER YUC ZAC States, Brazil Acre Alagoas Amapa Amazonas Bahia Ceara Para i ea °Pernambuco... and Ecuador; Morro Velho mine, Nova Lima, MG, Brazil. sm DI:90, R:321, P&J:281, ABI:189, MR 13:323(1982)... Cauca, ABI:410. Bom Sucesso, near Serro, MG, Brazil. 8m DI:106, R:340, P&J:302, 1.2.1.2 Iridium Ir...Potaro R., Guyana; Bom Sucesso, near Serro, MG, Brazil. BM DI:109, R:338, P&J:286, ABI:376, MR 23:471(1992) |  | | Book (edition) | | introduced in 1981. State in W Brazil. CO $110000S070000 W0663000W0740000 BT Brazil acritarchs Hystrichosphaeridae...W0724400W0732500 Acungui Group BT Precambrian SA Brazil SA Parana Idaho United States igneous rocks ...Alagoas State in NE Brazil. CO BT SA SA $103000S084500 W0350000W0382000 Brazil Sao Francisco Basin...Rajasthan. (Amami S011000N043000 W0495000W0550000 Brazil Serra do Navio Amargosa Desert Index California...UF Amazon region BT South America SA Bolivia SA Brazil SA Colombia SA Ecuador SA Peru SA Venezuela Amazon |  | | Book | | Watson, Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized...kaolinite (Weill, 1989). KARIBIBITE LATIN AMERICA BRAZIL C6rrego do Urucum pegmatite, Galileia, Minas Gerais...species (Pekov, 2000). KOSNARITE LATINAMERICA BRAZIL Genipapo [Jenipapo] district, Itinga, Minas Gerais...provinces of Virginia (Mitchell, 1977a). LATINAMERICA BRAZIL Barra do Salinas, Minas Gerais. Impressive specimens...com, 2005). Brumado district, Serra das Eguas, Bahia. SJ...-y-blue, bladed J...-yanite crystals to several |  | | Book (edition) | | example: Minas Gerais State in E central Brazil. BT Brazil Brazil BA South America Specific lakes, rivers...introduced in 1981. State in W Brazil. CO SI 10000S070000 W0663000W0740000 BT Brazil Acreodi Term introduced...uniformitarianism Acungui Group BT Precambrian SA Brazil SA Parana Ada County Valid through 1988. Search...Alagoas State in NE Brazil. CO SI03000S084500 W0350000W03 82000 BT SA SA Brazil Sao Francisco Basin...the Peruvian Andes flowing N and then E across N Brazil into the Atlantic Ocean. Also search Amazon. IN |
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Vaca Morta quarry, Serra da Vereda, Boquira, Bahia, Brazil