 | Giuliani, Gaston, Groat, Lee, Fallick, Anthony, Pignatelli, Isabella, Pardieu, Vincent (2020) Ruby Deposits: A Review and Geological Classification. Minerals, 10 (7) 597 doi:10.3390/min10070597 | Journal (article/letter/editorial) | | minerals Review Ruby Deposits: A Review and Geological Classification Gaston Giuliani 1, *, Lee A. Groat...is not uncommon on Earth but the gem varieties of ruby and sapphire are relatively rare. Gem corundum deposits...classification scheme for ruby deposits is described in the present paper. Ruby forms in mafic or felsic...geological environments are favorable for the presence of ruby: (1) amphibolite to medium pressure granulite facies...volcanism in continental rifting environments. Primary ruby deposits formed from the Archean (2.71 Ga) in Greenland |  | | Journal (issue) | | GEMOLOGICAL INSTITUTE OF AMERICA Review of Ruby from Mozambique Low-Temp Heat Treatment of Madagascar Sapphire...55, No. 2 EDITORIAL 161 Dive Into Summer: Mozambique Ruby, Madagascar Sapphire, and Black Nephrite from...Decade of Ruby from Mozambique: A Review Wim Vertriest and Sudarat Saeseaw Reviews the mining history,...market impact, and properties of ruby from northern Mozambique near Montepuez, now the world’s most productive...reserved. ISSN 0016-626X Dive Into Summer: Mozambique Ruby, Madagascar Sapphire, and Black Nephrite From |  | | Journal (issue) | | All About Colored Gemstones World Ruby Forum Large-Scale Mining Update Bitcoin and the Gem Industry...About Colored Gemstones 92 26 World Ruby Forum Large-Scale Mining Update 5 6 12 26 28 32 42 54 58 62...International Colored Gemstone Association 62 Ruby jewelry, set with diamonds in 18K gold; photos courtesy...Seeing Red at the World Ruby Forum 2017 The Montepuez Ruby Deposits, What’s Next? Mining Rubies in Greenland...Greenland − The Aappaluttoq Ruby Mine Greenland Ruby – The Gem That Came in from the Cold Tough Lessons from |  | | Journal (issue) | | Modern Jewelry Design Moroccan Amethyst and Mozambique Ruby 2015 Tucson Gem Shows Spring 2015 VOLUME...FEATURE ARTICLES 2 Blue Spinel from the Luc Yen District of Vietnam Boris Chauviré, Benjamin Rondeau, Emmanuel...categories of diamond. FIELD REPORTS 44 Mozambique: A Ruby Discovery for the 21st Century Merilee Chapin...the world’s most important commercially important ruby deposit. REGULAR FEATURES 31 56 58 The Dr. Edward...marquise-cut spinel, framed on either side by doves with ruby eyes. Photo by Robert Weldon/GIA, courtesy of Loretta |  | | Book | | Mineralogy and Geochemistry of Ruby Edited by Frederick Lin Sutherland and Khin Zaw Printed Edition... Mineralogy and Geochemistry of Ruby Mineralogy and Geochemistry of Ruby Editors Frederick Lin Sutherland...the Special Issue “Mineralogy and Geochemistry of Ruby” published online in the open access journal Minerals... vii Preface to ”Mineralogy and Geochemistry of Ruby” . . . . . . . . . . . . . . . . . . . . . . . ...for Special Issue “Mineralogy and Geochemistry of Ruby” Reprinted from: Minerals 2020, 10, 888, doi:10 |  | | Journal (issue) | | baroque-shaped nucleus • Update on ruby mining and trading in northern Mozambique • Conference report 312 Book...the research team collects samples in situ at the mine site, records the find/extraction in precise detail...or Diamagnetic (repelled). Relative to the total mining output of gem-quality diamonds each year, synthetic...dramatically in recent decades, often rivaling that of fine ruby and sapphire. Understanding the color origin of...premium values, often surpassing those for top-quality ruby, sapphire, and emerald, as evidenced by recent auctions |  | | Journal (issue) | | 371 393 A New Find of Danburite in the Luc Yen Mining Area, Vietnam Le Thi-Thu Huong, Laura M. Otter...FIELD REPORTS 404 Update on Gemstone Mining in Northern Mozambique Wim Vertriest and Vincent Pardieu Recounts...expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully...Chinese market • Durability of a broken glass-filled ruby • Conference report • Errata Editorial Staff Editor-in-Chief...promising find of gem-quality danburite from Yen Bai Province, Vietnam. Our fourth article returns to the emerald |  | | Journal (issue) | | “fish” pearl • Synthetic overgrowth on flux-heated ruby, Be-diffused sapphire • Fraudulently inscribed synthetic...Lechuga” monstrance • “Montana Queen” sapphire • Mozambique ruby update • Multi-color-zoned quartz from Brazil...synthetic star corundum, and the Colombian emerald mine-to-market industry. In our lead article, Drs. Sally...provide a comprehensive field report on current mining and the state of the Colombian emerald industry...by less than 1 km; and 12 samples from the Kagem mine in the Kafubu area of Zambia. Forty-five of these |  | | Journal (issue) | | determination. 580 Geographic Origin Determination of Ruby Aaron C. Palke, Sudarat Saeseaw, Nathan D. Renfro...Renfro, Ziyin Sun, and Shane F. McClure The world ruby market has undergone dramatic change in recent years...years, especially with the development of ruby mining in Mozambique. This contribution outlines GIA’s methods...criteria for establishing the geographic origin of ruby. p. 637 614 Geographic Origin Determination of...distinguish samples from Brazil, Nigeria, and Mozambique. 660 Geographic Origin Determination of Alexandrite |  | | Conference Proceedings | | downtown. Sponsors Diamond sponsors: 10,000 Euros Ruby sponsors 5,000 Euros 5 36 th IGC 2019 – Nantes...Maria Teresa Caldes, Stephane Jobic: Introduction to mine ralomimetism : the case of photochromic sodalite...S. Ercit : Canadian gem tourmaline and the Leduc mine. 10:00 – 10:20 Hänni, H.A., Milisenda, C., Wang...Schultz-Guttler, Bruno Zampaulo: unusual corundum (ruby) bearing rocks from Brazil and India 12 36...Panjikar: Investigation of ruby from a new occurrence from Paramathi in Karur district of Tamil Nadu, India |  | | Journal (issue) | | Akoya Cultured Pearls from Australia A Chart of Ruby Inclusions Winter 2017 VOLUME 53, No. 4 EDITORIAL...438 Accurate Reporting of Key Trace Elements in Ruby and Sapphire Using Matrix-Matched Standards Jennifer...457 Inclusions in Natural, Synthetic, and Treated Ruby Nathan D. Renfro, John I. Koivula, Jonathan Muyal...a Zambian emerald • Dyed quartzite imitation of ruby-in-zoisite • Synthetic moissanite imitating rough...rough diamond • Two natural sapphires with synthetic ruby overgrowth 466 G&G Micro-World Aragonite spheres |  | | Journal (issue) | | Chemical Composition of Trapiche Ruby from Khoan Thong, Luc Yen Mining District, Northern Vietnam 726 By...gemmology. Topics include diamond, jadeite, nephrite, ruby, sapphire, amber, emerald, coral, pearl, chalcedony...represents a new mining area or came from an existing deposit such as those in the Karoi District or the Zambezi...cobaltoan calcite from Switzerland—marketed as ‘Rose of Mine’—in his handmade jewellery creations (e.g. Figure...unique conditions. Following the cessation of coal mining in 1943, surface waters interacted with the surrounding |  | | Journal (issue) | | Characteristics of Blue to Yellow Beryl History of the Chivor Mine, Part I EDITORIAL 1 Spring 2020 VOLUME 56, No...beryl. p. 35 66 History of the Chivor Emerald Mine, Part I (1880–1925): From Rediscovery to Early Production...Ortiz Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival...laminated nucleus • Bismuth glass-filled Burmese star ruby 140 G&G Micro-World Actinolite in spinel • Bavenite...phenomenon resembling play-of-color • Staurolite in ruby • Triplite in beryl • Quarterly Crystal: Unknown |
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