 | | 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 | | 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 |  | | Book | | 22:65-69 [Abstracts of the] FM-TGMS-MSA Symposium on Garnet (chairman: K. J. Wenrich) 24:61-68 Abstracts of...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...and muscovite from the Ze Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized...Pitora, Minas Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil |  | | Journal (issue) | | Rossman The Indaia Sapphire Deposits of Minas Gerais, Brazil David S. Epstein, Warren Brennan, and Tulio...located in eastern Bolivia, near the border with Brazil [figure 2). The Anahi mine produces ametrine crystals...1986) described similar material purportedly from Brazil. There are also some accounts that the deposit...Anahi area and on importing the gem material into Brazil, early reports identified the source as being in...virtually impossible for gems mined in Bolivia to enter Brazil legally. To circumvent these restrictions, the |  | | Journal (issue) | | seeing absorption bands in zircon and almandine garnet. He mentioned the tiny diamonds presumed to have...Tanzania, consist of solid solution series of the garnet end members pyrope, almandine, and spessartite...belong to a new, naturally occurring phase with garnet structure, which would justify a new mineral name...series of the already known end members of the garnet group without a necessity for a new mineralogical...in this article with the investigations of other garnet specimens from the Umba Valley. The so called 'Malaya-garnets' |  | | Journal (issue) | | uscovite from the Ze Pinto prospect, M inas Gerais, Brazil .............................................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 .............................................SWEDISH PORTUGESE Mineralo S a in t- I J iI & GARNET BOOKS P.O. BOX 294 H A G AM AN, NEW YORK 12086 |  | | Journal (issue) | | uscovite from the Ze Pinto prospect, M inas Gerais, Brazil .............................................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 .............................................SWEDISH PORTUGESE Mineralo S a in t- I J iI & GARNET BOOKS P.O. BOX 294 H A G AM AN, NEW YORK 12086 |  | | Book | | octahedral diamond crystal sits on an ultramafic garnet-lherzolite. It came out of the volcanic kimberlite...fluorine in topaz and boron in tourmaline. In a third group, the mineral crystallization is truly unique: The...metasomatism, as it is called (e. g., emerald formation in Brazil, Russia, and Africa or sapphire formation on Madagascar)...hydrothermal phase as do varieties of the quartz group: amethyst, rock crystal, smoky quartz, and citrine...formative process of gemstones. It comprises the large group of gneiss rocks, crystalline schists, marbles, and |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Ethiopia, G Page 12: Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California...to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other |  | | Journal (issue) | | Crossed-polarized light. lc. Normal light. f=fuchsite, g=garnet, r=rutile. Id. Normal light. © Copyright the Gemmological...Cr)2(AlSi3Oio)(OH)2; rutile, T i 0 2 ; and almandine garnet, Fe 3 Al 2 (Si0 4 ) 3 . Figs, la and lb show this...bundles in some areas. Small dark red crystals of garnet, less than 0.1 mm, occur with less frequency. At...the accessory crystals of mica. The rutile and garnet crystals were not identified by these methods....assignable to quartz and mica. Although almandine garnet and rutile were indicated by light microscopy, |  | | Book (edition) | | Sources ... 87 Africa: Cradle of New Gemstones ... 87 Brazil: Gem Paradise ... 88 Al1stralia: New Wins From...Overview The Garnet Group ... 163 Chapter 20 D emantoid Garnet... 167 Chapter 21 Tsavorite Garnet ... 171...171 Chapter 22 Malaya Garnet ... 177 Chapter 23 Spessartite Garnet ... 181 Introduction a11.d Overview...the Queensland outback, the 1nining districts of Brazil, Tanzania, and Burn1a and Colon1bia - observing...natural nacreous pearls, conch pearl, demantoid garnet, peridot, moonstone and sunstone have been added |  | | Book | | a mineral belonging to the actinolitetremolite group having the nature of an asbestos. cabochon a gemstone...some emerald, quartz and garnet • anatase in rock crystal • apatite in garnet, kornerupine, corundum and... Formation of inclusions 5 • epidote in rock crystal • garnet in corundum • hematite in topaz and euclase • •...emerald rutile in quartz spinel in ruby zircon in garnet, corundum and kornerupine Many of these minerals...apatite so often found in corundum and hessonite garnet are recognized by their well-formed appearance |  | | Book (edition) | | extensively rewritten by the book’s distinguished group of authors in the light of new research and important...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossary of Mineral...letters pointing out that for some entries our space group, Z, and lattice constants are mutually exclusive...trigonal. Class: Classes are designated by their point group symmetry. Note that as mineralogists we use the | | | Book (edition) | | extensively rewritten by the book's distinguished group of authors in the light of new research and important...Tsurneb, Namibia, (lower, right) gold, Amazonas, Brazil All specimens from the collection of Eugene and...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossa,y of Mineral...letters pointing out that for some entries our space group, Z, and lattice constants are mutually exclusive |  | | Book | | Watson, Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized...columnar crystals of hedenbergite. Around 1960. a group of collectors visited the mine. then temporarily... Orlandi and Vezzoni, 2013 ). A beautiful 8-cm group of ilvaite crystals spotted with tiny crystal!>...ilvaite crystals to 1 cm occur in pockets in pyroxene-garnet skarn zones, and very large, somewhat rough crystals...Alto Piano region of northernmost Argentina, a group of mines exploits playa lake deposits of borate |  | | Book | | fluorescent mineral color remains, but for the growing group of knowledgeable collectors, more is required. The...they represent a significant fluorescent mineral group. To the greatest extent possible, the discussion...margarosanite, sphalerite, and members of the apatite group. The combination of red-fluorescing calcite and...fluorescence are very attractive. SOUTH AMERICA Brazil contains several richly mineralized regions well...point of view of fluorescent minerals. From Minas Gerais are fluorescing crystals of zircon, topaz, beryl | | | Book | | fluorescent mineral color remains, but for the growing group of knowledgeable collectors, more is required. The...they represent a significant fluorescent mineral group. To the greatest extent possible, the discussion...margarosanite, sphalerite, and members of the apatite group. The combination of red-fluorescing calcite and...fluorescence are very attractive. SOUTH AMERICA Brazil contains several richly mineralized regions well...point of view of fluorescent minerals. From Minas Gerais are fluorescing crystals of zircon, topaz, beryl |  | | Journal (issue) | | Sao Pedro mine in Minas Gerais (Saucui, Malacacheta Dist., Teofilo Ontoni), Brazil. (Beth Van Allen photo...mineral collector and mineral dealer has a small group of minerals they favor ROB LAVINSKY PHOTO Story...but without any success. In the early 1990s, a group of 10 investors was organized by Bryan Lees of The...reality be any one of a number of species from that group. It is also not a good idea to assign the name of...sand]. “Green earth” was a mix of glauconite, a group of complex, micaceous silicates found in marine | | | Journal (issue) | | Sao Pedro mine in Minas Gerais (Saucui, Malacacheta Dist., Teofilo Ontoni), Brazil. (Beth Van Allen photo...mineral collector and mineral dealer has a small group of minerals they favor ROB LAVINSKY PHOTO Story...but without any success. In the early 1990s, a group of 10 investors was organized by Bryan Lees of The...reality be any one of a number of species from that group. It is also not a good idea to assign the name of...sand]. “Green earth” was a mix of glauconite, a group of complex, micaceous silicates found in marine |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Connecticut. Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum...Species containing more than one anion or anion group may be assigned to a separate class or may be assigned...specifies the atomic (cation to anion, or to anion group) ratio for the mineral. This and the remaining numbers...appropriate Dana number. When recognized, membership in a group is noted. Occasionally, the phrase “an inadequately...internally contradictory. 5A. Groups The term group refers to an aggregate or multiple (usually three |
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