| Faceting-grade crystals occur in Switzerland, Brazil, and China, but they are extremely rare and tend...347 Figure 2. A faceted 0.90-carat staurolite, Brazil. Robert J. Lauf specimen No. 4572. Figure 3. Simple...higher-grade metapelites, it may be associated with sillimanite, andalusite, or cordierite. The fact that staurolite...metamorphosed to the biotite, garnet, staurolite, and sillimanite zones. Green (1963, p. 991) described the paragenesis...produced staurolite, andalusite, cordierite and sillimanite in the surrounding schists. Retrograde metamorphism |
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(1985) March - April 1985. The Mineralogical Record Vol. 16 (2) The Mineralogical Record, Inc. |
Journal (issue) |
| with crown of lepidolite, from Virgem da Lapa, Minas Gerais, Brazil. (For more on the locality see the article...March-April, 1985 Recent discoveries of Phenakite in Brazil J. P. Cassedanne Instituto de Geociencias Cidade...Universitaria Ilha do Fundao. 29910 Rio de Janeiro, Brazil INTRODUCTION Phenakite, Be2Si04, occurs in granitic... The finest specimens known, however, are from Brazil, where two new occurrences have recently been discovered...approximately in the northern center of the state of Bahia. Access is easy via the Arara road, 17 km from Campo |
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Atencio, Daniel (2023) Type Mineralogy of Brazil. Solaris Cultural Publications. |
Book |
| TYPE MINERALOGY OF BRAZIL: A Book in Progress, besides the currently valid mineral species described...vJi. \ V\y\ ~ ~ ~~ ~l~\Q/1'1 TYPE MINERALOGY OF BRAZIL A Book in Progress ~APESP FUNOA(:AO DE .MCl'AAO...Tavares Bastos, 41 - Perdizes Siio Paulo - SP - Brazil - CEP 05012-020 Phone (5511) 96905-5468 Cover:...Carlos Cornejo. DANIEL ATENCIO TYPE MINERALOGY OF BRAZIL A Book in Progress Crystal structure of brazilianitc...Publications Sao Paulo, 2023 DA,"-;IEL ATENCIO- TYPE MINERALOGYOF BRAZIL TABLE OF CONTENTS 8 Preface |
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Cornejo, Carlos, Bartorelli, Andrea (2009) Minerals & Precious Stones of Brazil. Solaris Cultural Publications, São Paulo. |
Book |
| MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 2009 - CARLOS CORNEJO...photographs: "Parafba" tourmaline (25 x 6 mm), Sao Jose da Batalha, Parafba. Courtesy of Bruno and Rolando Gioia...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 |
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(2022, November) Refined Elegance - The Small Treasures of Mineralogy. The Mineralogical Record Vol. 53 (6.1) The Mineralogical Record, Inc. |
Journal (issue) |
| Gerais, Brazil. (4) Humite, 2.3 cm, from Mount Somma, Italy. (5) Palladium, 2.1 cm, from Brazil. (6) Mellite...from the Jequitinhonha River area, Minas Gerais, Brazil. 4 Refined Elegance, a Supplement to The Mineralogical... from Minas Gerais, Brazil. (10) Chrysoberyl, 2.4 cm, from Minas Gerais, Brazil. (11) Euclase, 2.1 cm...cm, from Minas Gerais, Brazil. (12) Olivine, 2.7 cm, from St. John’s Island, Egypt. given the poorly...crystal, 2.6 cm, from Santa Teresa, Espirito Santo, Brazil. Ann Frazier collection; Jeff Scovil photo. Refined |
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(2006, September) Gems & Gemology Vol. 42 (3) Gemological Institute of America |
Journal (issue) |
| rhodochrosite, 2.59 ct Paraíba tourmaline from Brazil, 8.51 ct Sri Lankan spinel, 13.00 ct Madagascar...“padparadscha” sapphire, 2.12 ct Paraíba tourmaline from Brazil. Photo of stones © GIA and Harold & Erica Van Pelt;...presents a poster on golden rutilated quartz from Bahia, Brazil. Near right: Designer Michael Bondanza discusses...such as prehnite, apatite, pectolite, cat’s-eye sillimanite, maw-sit-sit, and many others are gaining recognition... Urals in Russia, northern Minas Gerais and Bahia in Brazil, Nepal, and Arkansas in the U.S. • Typical |
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(2006, January) Gems & Gemology Vol. 42 (4) Gemological Institute of America |
Journal (issue) |
| Madagascar • Phenomenal fire opal • “Sunset” quartz from Brazil • Swedish Blue (slag) and Swedish Iron Ore • Tourmaline...cultured pearls • Treated violetish blue quartz from Brazil • Circular inclusions in a diffusion-treated sapphire...DIAMONDS (Fontanella et al., 1977; Balzaretti and da Jornada, 1996). As a result, when examined with crossed...GEMOLOGY WINTER 2006 219 REFERENCES Balzaretti N.M., da Jornada J.A.H. (1996) Pressure dependence of the...Winter 2001 An Update on “Paraíba” Tourmaline from Brazil Spessartine Garnet from San Diego County, California |
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Galopim de Carvalho, Rui (2024) Gempedia. AIGS. |
Book |
| the Portuguese National Assay Office (Contrastaria da Imprensa Nacional - Casada Moeda), namely in their...Laurs, Brian Cook, Brian Jackson, Carlos Marques da Silva, Charles Carmona, Charles Evans, Christopher...thank the scientific team of the Palacio Nacional da Ajuda where one may visit the new Royal Treasure...In modern times it has been reported, namely in Brazil (Sa.Ito do Jacui in Rio Grande do Sul), Uruguay...apparent brownish tint. Reported since the 1790s in Brazil along with another 138.5 et fragment (stolen in |
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