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Topic: Conselheiro Pena

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	Brazilianite - Wikipedia, the free encyclopedia
		It occurs in the form of perfect crystals grouped in druses, in pegmatites, and is often of precious-stone quality.
		The only noted deposit of brazilianite is in the surroundings of Conselheiro, Pena, in the state of Minas Gerais in Brazil.
		During the past few years this deposit has yielded a great quantity of beautiful raw material, which has included crystals of surprisingly large dimensions and perfectly bounded crystal faces.
	en.wikipedia.org /wiki/Brazilianite (257 words)

	Mineralogical Record: Lavra Berilo Branco: The original "Sapucaia" rose quartz occurrence, Minas Gerais, ... (Site not responding. Last check: 2007-11-03)
		ago was accompanied in its late phase by the emplacement of dozens of pegmatite veins in the Conselheiro Pena area.
		In the immediate area surrounding the Berilo Branco pegmatite are several other noteworthy occurrences including the Frente Boca de Fogo mine (fine beryl), the Boca Rica mine (good rockbridgeite and hureaulite crystals) and the Fazenda Campo Alegre (where 3 tons of large heliodor crystals up to 80 kg each were found).
		The Conselheiro Pena area was known to contain at least 66 mica-producing pegmatites as of 1950 (Pecora et al., 1950).
	www.findarticles.com /p/articles/mi_qa3672/is_199909/ai_n8856171 (1394 words)

	Rocks & Minerals: Brazilianite - Brief Article (Site not responding. Last check: 2007-11-03)
		Much confusion surrounds the type locality, even though the correct location was established by de Godoy in 1945.
		The site was correctly ascribed to the Moscovita district of Conselheiro Pena Township.
		Conselheiro Pena was later divided, and Corrego Frio became part of the Linopolis district of Divino das Laranjeiras Township.
	www.findarticles.com /p/articles/mi_m0GDX/is_1_75/ai_61933124 (1165 words)

	Tucson04G (Site not responding. Last check: 2007-11-03)
		Here's an interesting selection of morganite variation of beryl thumbnails from Conselheiro Pena, Minas Gerais, Brazil.
		Light pink color (my camera doesn't catch the proper pink shade) and typical in habit of a shortened, 1/2 crystal.
		Here's a nice little beryl variation morganite from Conselheiro Pena, Minas Gerais, Brazil.
	www.kqminerals.com /tucson04g.html (634 words)

	GemWorld-COLLECTORS GEM ROUGH (Site not responding. Last check: 2007-11-03)
		4.39 carat, 9 x 7.6 x 5.9 mm, Near round w/ 5 points shape, Green and brown in sunlight, grey under incandecent, from Conselheiro, Pena, Brazil, Fairly clean except for some very miner surface tension cracks visible with 10x on one of the surfaces when candled.
		4.59 carat, 12 x 6.6 x 6.1 mm, Triangular shape, Green and brown in sunlight, grey under incandecent, from Conselheiro, Pena, Brazil, Fractures throughout near the surface.
		6.75 carat, 12.5 x 10 x 7.7 mm, Triangular shape, Green and brown in sunlight, grey under incandecent, from Conselheiro, Pena, Brazil, Fairly clean except fracture near surface and some inclusions that can be left out of finished gem.
	www.gemworld.com /RCollector.asp (1677 words)

	untitled
		A 1-2mm transparent layer covers the outside of each crystal, unusual, 4 x 2.5 x 2 cm.
		GEM red Spessartine with fantastic etch-like growth pattern, left photo backlit to show color, 2 x 1.5 x 1.5 cm.
		GEM red Spessartine with fantastic etch-like growth pattern, left photo backlit to show color, 2.3 x 2 x 1.8 cm.
	www.marinmineral.com /south5.html (332 words)

	BRAZILIANITE-PAGE (Site not responding. Last check: 2007-11-03)
		Other Characteristics: Crystals are striated and the index of refraction is 1.60 - 1.62 Associated Minerals are quartz, feldspars, muscovite and primary and secondary phosphates associated with phosphate rich pegmatites.
		Notable Occurrences include Conselheiro Pena and other mines in Minas Gerias, Brazil and Smith Mine, Newport, New Hampshire.
		Best Field Indicators are color, crystal habits, low density and cleavage."
	www.ascensioncrystals.com /BRAZILIANITE-PAGE.html (306 words)

	Abstract Issue 21 - 01 (Site not responding. Last check: 2007-11-03)
		More than 500 gemstone-bearing pegmatites are found in the OPP.
		In Minas Gerais, the most important tourmaline mines are located near São José da Safira (Morro do Cruzeiro and Chiar mines), Coronel Murta (Barra do Salinas mine) and Conselheiro Pena (Itatiaia and Jonas mines).
		Aquamarine is mainly extracted from pegmatites near Coronel Murta and Santa Maria do Itabira (Minas Gerais), Pancas (Espirito Santo) and Medeiros Neto (Bahia).
	www.austgem.gil.com.au /ab21-01.html (2232 words)

	[Ganoksin] - Lets Talk Gemstones - Aquamarine - a cyclosilicate
		It is notable that the extensive gemstone deposits in Minas Gerais often yield large aquamarine crystals accompanied by all the other colored varieties of beryl.
		According to Peter Bancroft in Gem and Crystal Treasures, the principal aquamarine-producing region begins about 75 miles north of Rio de Janeiro and includes the areas of "Conselheiro Pena, Governador Valadares, Teofilo Otoni, Aracuai, Salinas, the Jequitinhonha River basin, and Pedra Azul".
		Numerous sites lie in the Marambaia Valley in the Teofilo Otoni area alone.
	www.ganoksin.com /borisat/nenam/aquamarine.htm (1428 words)

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