 | | Catalog/List | | minerals, and is found in greatest abundance in Brazil. The specimens from Uruguay, however, tend to be...FLUORESCENT WILLEMITE AND CALCITE Sterling Hill Mine, Ogdensburg, New Jersey Willemite with calcite is...THREE-COLOR FLUORESCENT FRANKLIN CLASSIC Franklin Mine, Franklin Borough, Sussex Co, New Jersey Purple-fluorescing...found elsewhere in minor traces in a Bolivian tin mine, for example, but Franklin is likely the only locality...commonest silicate minerals such as quartz and feldspar group minerals. Such alkaline syenites usually contain |  | | Book | | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 2009 - CARLOS CORNEJO...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...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (issue) | | spessartine inclusion | Tourmaline from the Cruzeiro Mine, Brazil | Natural diamond showing a ‘synthetic’ pattern...Willems, Gilching, Germany; Bear Williams, Stone Group Laboratories LLC, Jefferson City, Missouri, USA;...and various phosphates (lazulite, an arrojadite-group mineral, kulanite, gormanite and collinsite). It...Mg3(Si2O5)(OH)4, is a member of the kaolinite-serpentine group, and is probably the most common serpentine mineral...mixed with sugilite reportedly from the Wessels mine in South Africa. Although the orange stones in the |  | | Book (edition) | | source ofgood advice); this book is as much yours as mine. 000001030626 TINT CONTENTS Contents Foreword...four 1 carat gems of the same quality. However, a group of smaller gems will cost more than a single gem...glimmering rarity called Aventurine and when present in Feldspar, sparkling Sunstone. One ‘gem’ to be aware of...area where gemstones occur. A deposit is called a ‘mine’ after it has been worked and one gem deposit can...gemstone to pass through seven pairs of hands from the mine to being set in jewellery and then sold to the consumer |  | | Book (edition) | | Chrysoberyl Spinel Topaz Tourmaline The Garnets Feldspar Group Zircon Peridot 69 92 117 150 167 171 175 185...book would be more sensibly shared out among a group of authors/gemmologists, each member tackling his...Edition being extracted from ‘Gems of the Silica Group’ to form a separate chapter. I have also reintroduced...First Edition For two decades, an earlier work of mine – Practical Gemmology – has proved a useful elementary...some reason, the stones are better placed in a group forming a small subchapter. In the technical section |  | | Book | | California (USA). Collection: Michael M. Scott, San José, California. Photo: Erica and Harold Van Pelt, Los...tourmaline crystals from William Larson’s Stuart Mine in the Pala Mountains, California (USA). Next to...quartz from the hydrothermal deposits of the Muzo Mine, Colombia. Collection: Mineralogical Institute of...fluorine in topaz and boron in tourmaline. In a third group, the mineral crystallization is truly unique: The...most important rockforming minerals such as mica, feldspar, quartz and olivine are deposited in strict order |  | | Book | | Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil Reprinted from: Minerals 2019, 9, 233, doi:10.3390/min9040233...Province (BPP) from Rio Grande do Norte in Northeast Brazil. The Boqueirao granitic pegmatite is classified...coloured by chromium and sometimes vanadium. The first group of authors in their review proposed an enhanced...important sources (i.e., Afghanistan (Panjsher Valley), Brazil (Itabira), Colombia (Coscuez), Ethiopia (Shakisso)...Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil. Minerals 2019, 9, 233. [CrossRef] Huong, L.T.-T |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and.... . . . . . . . . . . . . . . . . . . . . . . Feldspar . . . . . . . . . . . . . . . . . . . . . . ....and mineralogy of feldspar . . . . . . . . . . . . . . . . 39.2. Magmatic feldspar deposits . . . . | | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and.... . . . . . . . . . . . . . . . . . . . . . . Feldspar . . . . . . . . . . . . . . . . . . . . . . ....and mineralogy of feldspar . . . . . . . . . . . . . . . . 39.2. Magmatic feldspar deposits . . . . |  | | Book | | take millions of years to that of Minas Gerais (Brazil), where large, clear crystals form as the magma...Diamonds, once found only in India, Borneo and Brazil, are now also sourced in quantity from many African...Surface DE Workers in a conventional open-pit mine the rock, es mining daeeper, and machines ...customer; the journey that a diamond takes from the mine to the market is iy < 4 Gem-quality diamond crystals...Beers. The path taken by other gemstones from the mine or deposit to the consumer may have many more steps |  | 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) | | Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum, Harvard...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 |  | | 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...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...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 |
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