 | | Journal (article/letter/editorial) | | Laboratory, Carlsbad, California BRAZIL IMPRESSIONS: I have only been to Brazil twice, but 1 did see a lot...most expensive real estate. While on a tour in Brazil in the early 198Os, our bus was stopped by the...begging everyone’s forgiveness. My second trip to Brazil was in 1987 as a member of the International Gemological...Conference group. I had a wonderful time on both trips. Brazil is a beautiful country, one full of contrasts....Fallbrook, California FIRST TRIP TO BRAZIL: I have a number of memories of Brazil, but perhaps the most vivid |  | | Journal (issue) | | Top right: Topaz, 8.4 cm, from Ouro Preto, Minas Gerais, Brazil. Lower left: Phosphophyllite, 2 cm, from...Andrea Bartorelli: Minerals and Precious Stones of Brazil. Other important references (if any) for individual...da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson collection (I had to buy many unwanted...Morganite beryl, 7.5 cm, from near Araçuai, Minas Gerais, Brazil. The find predates the discovery of morganite...to get this specimen, a complete floater, for my Brazil collection); Tom Spann photo. Reference: Cassedanne |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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 (article/letter/editorial) | | mystical source of exceptionul specitiiens-Minus Gerais. So muny ditverenl things hud coiiie from this...then I huve hud the opportunity to visit Minus Gerais six times und ulso the greut pleusure of yetting...1986: Maklng Connections Hyman had already been to Brazil three times and had made several good contacts...the third largest city in Brazil and the capital of the state of Minas Gerais. In Belo we were happy to...from the San Diego area who made frequent trips to Brazil. He knew the dealers, he knew the gems, and he |  | | Report (issue) | | from some pegmatites. This specimen, from Minas Gerais, Brazil, is housed in the Deutsches Edelstein Museum...crystals are found in soils and stream gravels in Brazil. On the other hand, at high temperatures and pressures...phosphate type pegmatites, beryl is associated with quartz, microcline, albite, muscovite, biotite, ferrocolumbite...Alpine and hydrothermal veins, it is found with quartz and feldspar. In topaz rhyolites where red beryl...beryl is found, topaz, high-temperature quartz, and bixbyite are common associates of beryl. Alteration |  | | 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,...Century. The book is a showcase ofthe best from Brazil and it makes a handsome evocation of what is beautiful |  | | Journal (issue) | | Calcite-Kevin & Mark Brown collection, page 52; Smoky quartz gwindel-Brent Lockhart collection, page 175; Aquamarine-Wally...Carol & Karl Waming James & Charelle Webb Gary & Rose White Stretch & Lynn Young Introduction The Lone...unearthing many fine specimens of gadolinite, smoky quartz, fluorite, feldspar in crystals to five feet across...crystal groups found at various sites in the Gien Rose Limestone formation of Lampasas County. Lampasas...Streeter, R. L. Parker found a piece of "heavy quartz" in a stream bed. lt proved to be topaz from a |  | | Journal (issue) | | 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,...(Figure 4b), spessartine (Figure 4c), almandine, quartz, zircon, apatite, topaz, sillimanite, fluorite...tourmaline (Figure 4d), aquamarine, spessartine, quartz, topaz, zircon and phenakite are mined. Tourmaline...Junior (BC Gemas do Brasil, Governador Valadares, Brazil), and heating to 500°C in air was successful in |  | | Journal (issue) | | R. G. Warren A new find of crystallized rose quartz in Minas G e ra is ................................B-2120 Schoten COVER: ELBAITE on quartz from Minas Gerais, Brazil. The crystal is 8.5 mm in width. Photo...project into the cavities. Sometimes, vugs with small quartz crystals or cerussite crystals up to 1 cm are found...as orange-red tabular crystals associated with quartz crystals. Willemite, Z n2S i0 4 Fine-grained massive...experiences in Brazil. Caplan was the first to bring museumquality mineral specimens out o f Brazil, specimens |  | | Journal (issue) | | Propietat Lustre Brillo Lluisor Brilliance Resplendor Resplandor Fire Fuego Foe Sparkliness Centelleo...given the final polish to a well-made emerald-cut quartz. J. Gemm., 1991,22,6 The plans for the future...given the final polish to a well-made emerald-cut quartz. This Barcelona visit was a most enjoyable experience...of of uniaxial gem minerals corundum, beryl and quartz, as an immersion microscope is easily performable...sapphire) as well as beryl (emerald, aquamarine) and quartz (amethyst, citrine), an increasing number and quantity |  | | Journal (issue) | | Hawthorne & W. W. Pinch Fifty-nine treasure hunts in Minas Gerais . . . . . . . . . . . . . . . . . . . . . ....albite matrix, 6.6 cm, from Conselheiro Pena, Minas Gerais, Brazil. Sandor Fuss/ Stuart Wilensky specimen;...Jeff Scovil photo. For more on the minerals of Minas Gerais see Guido Steger’s memoirs in this issue. The...with relatively little smoky color compared to the quartz from other Piedmont amethyst occurrences. Hundreds...a depression that would contain colorless drusy-quartz-lined vugs containing nice clusters of gemmy amethyst |  | | Journal (issue) | | uscovite from the Ze Pinto prospect, M inas Gerais, Brazil .............................................& J. Alves Crystallized rose quartz from Alto da Pitora, M inas Gerais, Brazil .........................Alves Zanazziite, a new mineral from M inas Gerais, Brazil .............................................from Lavra da Ilha, Taquaral district, M inas Gerais, Brazil .............................................Universitaria Ilha do Fundao 21.190, Rio de Janeiro, Brazil Jeanete Alves Departamento de Recursos Minerals |  | | Journal (issue) | | uscovite from the Ze Pinto prospect, M inas Gerais, Brazil .............................................& J. Alves Crystallized rose quartz from Alto da Pitora, M inas Gerais, Brazil .........................Alves Zanazziite, a new mineral from M inas Gerais, Brazil .............................................from Lavra da Ilha, Taquaral district, M inas Gerais, Brazil .............................................Universitaria Ilha do Fundao 21.190, Rio de Janeiro, Brazil Jeanete Alves Departamento de Recursos Minerals |  | | Journal (issue) | | the Espirito Santo Pegmatite District, Eastern Brazil.. ......697 by M. L. Chaves, A. Bartorelli & C...sixling twin, 6.3 cm, from ItaguaÇu, Espirito Santo, Brazil. William Larson collection, ex Edward Gübelin,...recently completed road, he was fascinated by the quartz and amethyst geodes that could be seen in the road...completed the program at the Federal University of Minas Gerais. He worked in the Magisterium of Extractive...recalled by Wendell Wilson in Mineral Collections of Brazil (Cornejo and Bartorelli, 2020): The second issue |  | | Book | | crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto) 22: 183-185 ALTO...Burian goyazite from [Alto Bernardino, Paraiba,] Brazil (by J. S. White, Jr.) 12:379 ALUMOHYDROCALCITE...Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized rose quanz from Alto...Pitora, Minas Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil...and platinum from C6rrego Born Sucesso, Minas Gerais, Brazil 23:471-474 AMARGOSA DESERT Hydroboracite |  | | Report (volume) | | Deposits in Minas Gerais Brazil GEOLOGICAL SURVEY BULLETIN 964-C Mica Deposits in Minas Gerais Brazil...M. BARBOSA and RESK FRAYHA, DIVISSO DE FOMENTO, BRAZIL GEOLOGIC INVESTIGATIONS IN THE AMERICAN REPUBLICS...da Produgao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...__________-___---_____---_-________ Exports of sheet mica from Brazil, 1900-1945-___-__-_______----______ General statement...___________________ Mica-mining industry in Minas Gerais.______________________________ General stat |  | | Journal (issue) | | Collector—Part II Fify-nine treasure hunts in Minas Gerais, 1969–2005 . . . . . . . . . . . . . 207 by...vol. 16, no. 3). It measured 13.5 ⫻ 23 feet and rose to a height of 40 feet. The floor was several feet...field mineralogist for the Manhattan Project in Brazil in 1941, and served in the Army Signal Corp in...Collector—Part 2: Fifty-Nine Treasure Hunts in Minas Gerais, 1969–2005 Guido Steger Nestroystrasse 15 2700...been visiting mines and mineral occurrences in Brazil for 36 years, and has seen many now-famous discoveries |  | | Journal (issue) | | Santa Maria mine, Brazil; (2) 20.10-ct peridot, Burma; (3) 21.09-ct kunzite, Brazil; (4) 8.14-ct grossular... California; (6) 15.18-ct tourmaline, Paraiba, Brazil; (7) 10.42-ct tanzanite, Tanzania; (8) 6.09-ct...38-ct ruby, Burma; (17) 3.08ct tourmaline, Paraiba, Brazil; (18) 1.85-ct fancy purple-pink diamond, Argyle...number of new localities. Fine alexandrites from Brazil, sapphires from Southeast Asia and Australia, emeralds...pegmatite gemstones (tourmaline, aquamarine, etc.) from Brazil, Pakistan, Afghanistan, and several countries in |  | | Catalog/List | | this one, come from the mine with a heavy coat of Quartz, which is carefully and laboriously removed by...waxy to vitreous, and the surrounding colorless Quartz ‘matrix’ is matte in appearance. The specimen is...May 4, 2014 | 12:00 PM CT 17 52013 TOPAZ and QUARTZ Bulochi, Astor Valley, Astor District, Gilgit-Baltistan...sharp and lustrous Quartz crystal 4.38 inches (11.2 cm) tall. The Topaz and the Quartz are in remarkable...minor note off to the rear, on one side. Massive Quartz with white Cleavelandite is the only matrix for |  | | Catalog/List | | Elbaite on Feldspar. And then there is another Rose Quartz, smaller than the “Madona Rosa”, but just as...and understood: Calcite in scalenohedral form; Quartz - as stalactites, and as a druzy coating ; and...revolves around the ordered relationship between the Quartz stalactites and the Calcite. Looking straight down...the growing Calcite crystal influence where the Quartz “fingers” decided to grow, it also influenced the...the dark narrow lines of inclusions along the Quartz fingers. All of which begs the question: “And just |  | | Book | | 120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...cm Page 251: Calcite, Irai, Rio Grande do Sul, Brazil * 12.5 x 10 x 10.5 cm Page 252: Gypsum rosette...Earth’s crust are composed of just a few minerals; quartz and the feldspar group are the most abundant species...growth, as exemplified by tourmaline in schist, quartz or phlogopite. Space for Growth Cavities in rocks...about the same time, as happens with pyrite and quartz, or they may have grown one after the other, as |  | | Catalog/List | | meteorites that contains a rare form of shocked Quartz called Stishovite. The irst remnants of Muonionalusta...due to its metallic luster and patches of drusy Quartz crystals. This medium-sized sphere has been carved...com/5386 72054 Blue Calcite Sphere Stone Source: Brazil This huge orb appears almost as a group of lufy...Source: Brazil This Rhodonite sphere has a rich dark red coloration as it was mined in Brazil. This type...green and cream orbs with a spattering of drusy Quartz among a sea of concentric orbs. This sphere has | | | Book | | 120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...cm Page 251: Calcite, Irai, Rio Grande do Sul, Brazil * 12.5 x 10 x 10.5 em Page 252: Gypsum rosette...Earth’s crust are composed ofjust a few minerals; quartz and the feldspar group are the most abundant processes...growth, as exemplified by tourmaline in schist, quartz or phlogopite. Space for Growth Cavities in rocks...about the same time, as happens with pyrite and quartz, or they may have grown one after the other, as |  | | Journal (issue) | | Ferruginha district, Conselheiro Pena, Minas Gerais, Brazil . . . . . . . . . . . . . ....Pena Minas Gerais, Brazil Luiz Menezes Rua Esmeralda, no. 534 Bairro Prado, Belo Horizonte Minas Gerais...Gerais, Brazil 30410-080 Email: lmenezesminerals@uol.com.br The Sapo mine exploits a thick sub-horizontal...discovered in 1985 and has produced large pockets of quartz crystals, several important pockets of tourmaline...found at Brazil’s Sapo mine, near Goiabera, in Minas Gerais. The specimens show green and yellow color-zoned |  | | Journal (issue) | | 0026-4628 'Continued on p. 415 Articles Diamonds in Brazil .................................................on the cause of smoky and amethystine color in quartz .................................................35565, Tucson, AZ 85740. BLUE QUARTZ A synthetically colored blue quartz (trade named “Aqua Aura”) was...layered dot pattern of metallic gold on colorless quartz. The effect is striking, and the treated crystals...Fundao 21.910 Rio de Janeiro, Brazil Since their discovery in Minas Gerais, near the town of Diamantina |
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Resplendor, Minas Gerais, Brazil