 | | Journal (issue) | | mine, Colombia. Top right: Topaz, 8.4 cm, from Ouro Preto, Minas Gerais, Brazil. Lower left: Phosphophyllite...Andrea Bartorelli: Minerals and Precious Stones of Brazil. Other important references (if any) for individual... 5.5 cm, from the Alto da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson collection...beryl, 7.5 cm, from near Araçuai, Minas Gerais, Brazil. The find predates the discovery of morganite at...to get this specimen, a complete floater, for my Brazil collection); Tom Spann photo. Reference: Cassedanne |  | | Journal (issue) | | COVER: TOPAZ crystal, 7 cm, with crown of lepidolite, from Virgem da Lapa, Minas Gerais, Brazil. (For...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...kaolinized feldspar, schorl, abundant muscovite, beryl, topaz, and small amounts of phenakite, tantalite, zircon |  | | 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 |  | | 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...Hauerite, 2.1 cm, from Raddusa, Catania, Sicily. (7) Topaz, 2 cm, from Schneckenstein, Saxony, Germany. (8)...(9) Topaz, 2 cm, from Minas Gerais, Brazil. (10) Chrysoberyl, 2.4 cm, from Minas Gerais, Brazil. (11)...(11) Euclase, 2.1 cm, from Minas Gerais, Brazil. (12) Olivine, 2.7 cm, from St. John’s Island, Egypt. given |  | | Journal (issue) | | (row 3)—13.85 ct Sri Lankan sapphire, 18.41 ct topaz, 10.92 ct Burmese spinel; (row 4)—5.21 ct South...rhodochrosite, 2.59 ct ParaĂba tourmaline from Brazil, 8.51 ct Sri Lankan spinel, 13.00 ct Madagascar...“padparadscha” sapphire, 2.12 ct ParaĂba 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...Figure 2. This Edwardian corsage ornament of pink topaz and diamonds set in platinum (ca. 1890) demonstrates |  | | 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 “ParaĂba” Tourmaline from Brazil Spessartine Garnet from San Diego County, California |
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