| | Journal (article/letter/editorial) | Hydroxyl-fromherderitc Brazil and a Guide to Species Nomenclature for the Herderite/Hydroxyl-herderite... r recent years two Brazilian localities, Virgem da Lapa and the Golconda mine, have produced remarkable...Hydroxyl-Herderite. Virgem da Lapa, Minas Gerais, Brazil (3)* Golconda mine, Minas Gerais, Brazil (6) Waldstein...collectors. In recent years, however, two localities in Brazil have produced exquisite hydroxyl-herderite with...specimens. These two "new" occurrences, at Virgem da Lapa and the Golconda mine, deserve detailed discussion | | | Journal (article/letter/editorial) | 1967 in the Pioneira mine, Teofilo Otoni, Minas Gerais, Brazil. Downloaded by [Stockholm University Library]...de Salinas mine, Aracuai-Itinga district, Minas Gerais, Brazil. Although the owner did not wish to sell...specializing in colored gemstones. Keith's travels in Brazil in search of gems and crystal specimens have added...gemmy red tour malines from the Jonas mine in Brazil have sold for several hundred thousand dollars...from the Jonas pocket was said to have sold in Brazil in 1982 for close to $5 mil lion. This is in addition | | | 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 | | | Journal (article/letter/editorial) | dark, stepped-growth crystals of muscovite with albite, 2.8 cm high, from the Strickland quarry, Portland...are 2â3 cm across, and are associated with beryl, albite, and quartz. Plumose muscovite has been found at...rosettelike habit. Associated minerals include beryl, albite, fluorapatite, and quartz. In nearby New Hampshire...muscovite. One in the collection is associated with albite and has stepped-growth muscovites to 4 cm across...almost 10 cm across. The associated minerals include albite, fluorapatite, beryl, and quartz, to name but a | | | Report (issue) | [100.03] 100.00 (1) Paris, Maine, USA. (2) Virgem da Lapa, Brazil; by electron microprobe, H2 O by the Penfield...beryllonite. Association: Elbaite, topaz, cassiterite, albite, microcline, muscovite, lepidolite, quartz. Distribution:...Ungursuay, Kazakhstan. In Brazil, large crystals from the XandaÌ mine, Virgem da Lapa, and at the Golconda...Golconda mine, near Governador Valadares, Minas Gerais. Name: For predominance of hydroxyl over fluorine in...and W.E. Wilson (1979) Hydroxyl-herderite from Brazil and a guide to species nomenclature for the he | | | Journal (issue) | 3 FEATURE ARTICLES Gem Pegmatites of Minas Gerais, Brazil: The Tourmalines of the Araquai Districts...tourlnaline thon anywhere else in the world-Minos Gerais, Brazil; the other with (I new locality for red tourmaline-Zcrmbia...thousand miles south, to the "Gem Pegmatites of Minas Gerais." THe first in a series (which Cdntinues in...his extensive travels in the mining regions of Brazil. Mr. Proctor received an M.S. in molecular biology...graduate gemologist. GEM PEGMATITES OF MINAS GERAIS, BRAZIL: THE TOURMALINES OF THE ARACUAI DISTRICTS | | | 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... 5.5 cm, from the Alto da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson collection...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 | | | Journal (issue) | mine, Minas GĂ©rais, Brazil. See 'The location, geology and mineralogy of gem tourmalines in Brazil' on...location, geology and mineralogy of gem tourmalines in Brazil Jacques P. Cassedanne, Dr. Sc. *, and Maurice Roditi...mainly consist of K-feldspar variably perthitized, albite, muscovite and milky quartz with some lepidolite...tourmaline is the 'Eastern pegmatitic province' of Minas Gerais. One general and three detailed maps of specific...Tourmaline, pegmatite, eluvial deposits, gem mining, Brazil © Gemmological Association and Gem Testing Laboratory | | | Journal (article/letter/editorial) | Beryl (variety Heliodor), Teofilo Otoni, Minas Gerais, Brazil; 2002; painted actual size of specimen (8...5. Elbaite on Lepidolite: Coronel Murta, Minas Gerais, Brazil; 2007; painted actual size of specimen (9...Rubellite) on Albite, Jonas Mine, Itatiaia District, Conselheiro Pena, Minas Gerais, Brazil; 2007; painted...Hydroxyherderite (twinned crystal), Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil; 2002; painted actual size of specimen...Elbaite with Albite, Tunnel de Dada, Pederneira Mine, SĂŁo JosĂ© da Safira, Minas Gerais, Brazil; 2007; painted | | | Journal (issue) | Hawthorne & W. W. Pinch Fifty-nine treasure hunts in Minas Gerais . . . . . . . . . . . . . . . . . . . . . ....(variety morganite) on albite matrix, 6.6 cm, from Conselheiro Pena, Minas Gerais, Brazil. Sandor Fuss/ Stuart...Jeff Scovil photo. For more on the minerals of Minas Gerais see Guido Stegerâs memoirs in this issue. The...clusters of brilliant black, blocky or platy crystals (Brazil, South Africa); sharp crystals in groups with flashing...rhombohedral magnesite crystals, come from Brumado, Bahia, Brazil. Switzerlandâs best-known locality for hematite | | | Journal (issue) | by R. J. King Famous mineral localities: The Virgem da Lapa Pegmatities .................................crystal, 7 cm tall, from the Virgem da Lapa district, Minas Gerais, Brazil. Sorbonne collec tion, photo...January-February, 1982 famous mineral localities: J/irqem da Lapa I pegmatites peamc by J. P. Cassedanne Instituto...University of Rio de Janeiro & C.N.Pq. Rio de Janeiro, Brazil and Jack Lowell Colorado Gem and Mineral Company...a small pegmatite area in northeast ern Minas Gerais, Brazil, began to produce uncommonly fine specimens | | | Report (issue) | = 8.3909(5) Z=4 X-ray Powder Pattern: Minas Gerais, Brazil; Durango, Mexico; Thomas Range, Utah, USA;...mineral. Association: Tourmaline, beryl, microcline, albite, °uorite, cassiterite, zinnwaldite, quartz. Distribution:...Japan. From Ouro Preto and near Virgem da Lapa, Minas Gerais, Brazil. In the USA, at Devils Head, Douglas | | | Journal (issue) | Design Feature articles Hydroxyl-herderite from Brazil and a guide to species nomenclature for the he...specimen known, with albite and elbaite, from Virgem da Lapa, Minas Gerais, Brazil. The crystal is 14.1...20715 n recent years two Brazilian localities, Virgem da Lapa and the Golconda mine, have produced remarkable...End-Member 54â63% Virgem da Lapa, Minas Gerais, Brazil (3)* 71-90% Golconda mine, Minas Gerais, Brazil (6) 53%...collectors. In recent years, however, two localities in Brazil have produced exquisite hydroxy 1-herderite with | | | Journal (article/letter/editorial) | light yellow, twinned crystal, Linopolis, Minas Gerais, Brazil (7.4 cm). 18: Deep blue, doubly terminated...Green elbaite crystals on albite, Jonas mine, Itatiaia, Minas Gerais, Brazil (5 cm). Figure 23: Cherry...(variety aquamarine), Rio Jequitinhonha, Minas Gerais, Brazil (8 cm). M A R C H / A P R I L 1981 57...crystals of cleavelandite with muscovite, Minas Gerais, Brazil (18 cm). Figure 64: Bright blue azurite...lepidolite crystal on microcline, Virgem da Lapa, MinasGerais, Brazil (7.8 cm). Figure 69: Grey multiple | | | Report (issue) | Albite Na1:0ÂĄ0:9 Ca0:0ÂĄ0:1 Al1:0ÂĄ1:1 Si3:0ÂĄ2:9 O8 c 2001 ° Mineral Data Publishing, version 1.2 Crystal..., Ontario, Canada. From Virgem da Lapa and Morro Velho, Minas Gerais, Brazil. Name: From the Latin,...displacement parameters in structure reÂŻnements of low albite. Amer. Mineral., 75, 135{140. All rights reserved | | | Report (issue) | cavities in Li-rich granite pegmatite. Association: Albite, K-feldspar, roscherite, viitaniemiite, childrenite...Laranjeiras, and the Xanda mine, Virgem da Lapa, Minas Gerais, Brazil. From the Tip Top mine, Custer County | | | Journal (issue) | Aesthetics Underground - Canada Alvaro Lucio M inerals - Brazil Ana Arruda - Azores Arizona M inerals Artifactual...Artifactual Im port Ausrox - Australia Barbosa, Carlos - Brazil Barcelona - US Im porters - Spain Ben David, Claude...Megaw, Peter M inerals Menezes, Luiz M inerals - Brazil M ercer M inerals M idwest M inerals M ikon M ineralien...ineralien Kontor - Germany Min - Geo - Czech Republic Minas Victoria - Spain M iner-W a - Poland Mineral Cabinet...Valadares M inerals - Brazil Van Scriver's M inerals - Czech Republic Vasconcelos - Brazil W einrich, Dan Minerals | | | Journal (article/letter/editorial) | microcline crystals, 35 Ă 45 cm, Virgem da Lapa, Minas Gerais, Brazil. Adalberto Giazotto photo. Figure...cm, Pederneira mine, SĂŁo JosĂ© de Safira, Minas Gerais, Brazil. Adalberto Giazotto photo. Figure 10 (top...beryl, 23 Ă 18 cm, CorrĂ©go do Urucum mine, Minas Gerais, Brazil. Jeff Scovil photo. 96*2: 405,9(3:...lepidolite, and albite, 55 Ă 40 Ă 35 cm, Pederneira mine, SĂŁo JosĂ© da Safira, Minas Gerais, Brazil. Adalberto...Serra de Safira, Santa Maria do Suaçui, Minas Gerais, Brazil. Jeff Scovil photo. Figure 20 (below right) | | | Journal (issue) | from Minas Gerais, an 8-inch by 1 1/2-inch, doubly terminated, gemmy green elbaite also from Minas Gerais...blue-green, 5.5 cm toll) from near Ouro Prefo, Minos Gerais Brazil. See M.R. 2, 10. Figure 2, righf. Vivianife...yellow, 4.2 by 3 cm) from near Linopolis, Minas Gerais, Brazil. Linopolis, although not on most maps, is...cm tall) probably from near Ouro Preto, Minas Gerais, Brazil. See M.R. 2, 10. Figure 14, left. Scorodife...Quartz, var. asteriated Rose (pink, 6.3 cm) from Brazil, cut in Idor-Oberstein. Normally lapidary items | | | Book | Formed in Pegmatites: 57 Gem Pegmatites of Minas Gerais, Brazil 5. Gemstones Formed Directly from Molten...Colombia as an example; the pegmatites of Minas Gerais, Brazil; and those gemstones formed in a magma at...including The Gem Collection of the Smithsonianj Brazil, Paradise ofGemstonesj Emerald and Other Berylsj...MEXICO Ag.UB SuECo. CHI HUAHUA MeXICO ~ tRIO$. BRAZIL DtamOIH~ Tu'QuorSiIl ALLUVIAL GEM DEPOSITS Agate...ru)8AGI. BRAZIL OlamorM' DI~mond Drarnolld PARANAICAo BRAZIl. CORQPYlAN OEL. BRAZIL. BRAZIL. OIAMANTlNA | | | Book | Formed in Pegmatites: 57 Gem Pegmatites of Minas Gerais, Brazil 5. Gemstones Formed Directly from Molten...Colombia as an example; the pegmatites of Minas Gerais, Brazil; and those gemstones formed in a magma at...including The Gem Collection of the Smithsonianj Brazil, Paradise ofGemstonesj Emerald and Other Berylsj...MEXICO Ag.UB SuECo. CHI HUAHUA MeXICO ~ tRIO$. BRAZIL DtamOIH~ Tu'QuorSiIl ALLUVIAL GEM DEPOSITS Agate...ru)8AGI. BRAZIL OlamorM' DI~mond Drarnolld PARANAICAo BRAZIl. CORQPYlAN OEL. BRAZIL. BRAZIL. OIAMANTlNA | | | Book | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 2009 - CARLOS CORNEJO...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...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 | | | Journal (issue) | mineral collectorâPart 3: Treasure-hunting in Minas Gerais since 2000. . . . . . . . . . . ....inches), from the Morro da Mina manganese mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Probably the worldâs...Mineral CollectorâPart 3: Treasure-Hunting in Minas Gerais Since 2000 Guido Steger Nestroystrasse 15 2700...huntsâ which he has undertaken since 1969 in Minas Gerais, Brazil. Here he reviews some localities in the...treasure-hunting (and its difficulties) in contemporary Minas Gerais. THE BRAZILIAN MINERAL SCENE AT PRESENT My 2007 | | | Journal (article/letter/editorial) | JanuarylFebruary: Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History...Colorado, 337, 382 Actinolite, Bahia, Brazil, 36 Agardite-(Y), Bahia, Brazil, 38 Agate, 259-67 Aikinite, Colorado...mine, Colorado, 3 15 Albite. Maine, 4 12 Alexandrite, Hematitia, Minas Gerais, Brazil, 23 Almandine, Maine...225 Anatase, Bahia, Brazil, 3.5 Andalusite, Michigan, 96 Anhydrite, Bahia, Brazil, 39; Colorado, 397;...Bahia, Brazil, 38; Madagascar, 256; Michigan, 96; Ohio, 255 Aquamarine, Minas Gerais, Brazil, 19, 25 | | | Report (issue) | Topaz, 3.5 cm tall Capao Mine, Ouro Preto, Minas Gerais, Brazil Max and Jon Sigerman collection Robert Weldon...Zimbabwe Blue Topaz: St. Anne's Mine JAN KANIS 60. Brazil: The Land of Topaz DIETMAR SCHWARZ 68. Topaz from...locality in Brazil (Sinkankas, 1981). Two gemmy crystals from the Te6filo Ot6ni region in Minas Gerais, Brazil...three huge specimens from Te6filo Ot6ni, Minas Gerais, Brazil, that are housed at the Smithsonian Institution... Topaz and Associates Above: Topaz, schorl, and albite, 7.8 cm tall; Shigar Valley Gilgit-Baltistan, Pakistan; |
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Xanda mine, Virgem da Lapa, Minas Gerais, Brazil