 | | 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 |  | | Book | | MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...BARTORELLI EDITORIAL AND GRAPHIC COORDINATION Silvia Rita dos Santos TRANSLATION BTS - Business Translation Services...EDITING Courtesy of Ian McReath Spine photograph: Crystal of multicolored tourmaline (84 x 26 mm), Lavra...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 |  | | Book | | take the collector or fossicker to the sites of crystal occurrences. Such detailed guidance is not possible...Occurrence: The Americas 63 USA 64 Mexico 72 Panama 75 Brazil 75 Canada 80 7 Occurrence: Rest of the world 81...QUARTZ Varieties Habit Pleochroism Occurrence Rock crystal (colourless), amethyst (violet-purple), citrine...quartzite (a whitish rock, fine-grained, opaque). Single crystal specimens of rock crystal, amethyst, citrine...in amethyst (blue, reddish-violet). In almost all rock types and in most countries. CHALCEDONY Agate (light |
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