 | Garnier, V., Ohnenstetter, D., Giuliani, G., Blanc, P., Schwarz, D. (2002) Mineralogy and Petrology, 76 (3) 179-193 doi:10.1007/s007100200040 | Journal (article/letter/editorial) | | Trace-element contents and cathodoluminescence of ``trapiche'' rubies from Mong Hsu, Myanmar (Burma): geological...handling: A. Finch Summary Mong Hsu rubies of the ``trapiche'' type are sporadically seen in the gem market...as the cathodoluminescence behaviour of six ``trapiche'' rubies permit the conclusion that these rubies...and V are the main chromophorous elements in both ruby types; they act, together with Ti, as activators...both ruby types; (3) the presence of bastnasite in trapiche ruby and ¯uorite in nontrapiche ruby indicates |  | 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...Primary ruby deposits formed from the Archean (2.71 Ga) in Greenland to the Pliocene (5 Ma) in Nepal. Secondary |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 98, pages 1120–1132, 2013 A study of ruby (corundum) compositions from the Mogok Belt, Myanmar:...been famous for producing classic, pigeons-blood ruby (corundum: Al2O3) specimens. The present model for...distinct Fe enrichment, as in the case of metasomatic ruby, is observed. Sensitivity to the sub-ppm level may...metamorphism, and metasomatic processing. Keywords: Ruby, corundum, Mogok, Myanmar, chemical compositions...consensus on the formation conditions of the Mogok ruby has yet to be reached (Giuliani et al. 2007). Although |  | | Journal (issue) | | Spring 2016 ISSUE 31 TRAPICHE The Rising Star Gemstones’ 2016 Price Level Trends Van Cleef & Arpels...2016 Spring 2016 ISSUE 31 Spring 2016 ISSUE 31 TRAPICHE The Rising Star Gemstones’ 2016 Price Level...images:Tourmaline: courtesy of Ian Kalway. Sapphire and ruby: courtesy of Jeffrey Scovil, ©Primagem. CONTENTS...Discovery Cover Feature 32 45 Trapiche: The Rising Star ‘Trapiche’ Vs ‘Trapiche-Like’ Textures in Minerals...Gemstones Sparkle at Bonhams London Auction ‘Jubilee Ruby’ Is Highlight Of Christie’s Sale, Selling For $14 |  | | Journal (issue) | | the Black Prince’s Ruby Emeralds from Davdar, China Flower-Shaped Trapiche Ruby from Myanmar Characterisation...Museum Foundation ARTICLES 360 The Black Prince’s Ruby: Investigating the Legend By Jack M. Ogden A Study...Rehman and Andy H. Shen 404 Flower-Shaped Trapiche Ruby from Mong Hsu, Myanmar: A Revised Growth Mechanism...Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy | Tourmaline...or Italian) covered topics pertaining to quartz, ruby and tanzanite. 342 THE JOURNAL OF GEMMOLOGY, 37(4) |  | | Journal (issue) | | evidence of tissue nucleation only. pg. 111 110 Ruby and Sapphire from Jegdalek, Afghanistan Gary W....localities • Freshwater cultured “Kasumiga pearls” • Trapiche ruby update • Malagasy spinel • Treated chalcedony...natural origin of a ruby that has been heat treated. This should not be called “natural ruby” because it is...origin and condition would include: “heat treated ruby, natural origin,” “clarity enhanced emerald, natural...conclusions on Identification Reports (e.g., “Natural Ruby. Evidence of heat treatment is present.”) has been |  | | Journal (issue) | | pg. 5 24 Rubies and Fancy-Color Sapphires from Nepal Christopher P. Smith, Edward J. Gübelin, Allen M...numerous books and articles (including the paper on Nepal rubies in the present issue), published a comprehensive...and even produced films on the historic Burmese ruby and jadeite deposits. Photoatlas of Inclusions in...1997 23 RUBIES AND FANCY-COLOR SAPPHIRES FROM NEPAL By Christopher P. Smith, Edward J. Gublein, Allen...high in the Himalayan mountains of east-central Nepal (Ganesh Himal). First discovered in the early 1980s |  | | 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) | | opal Quartz Tourmaline Spinel (natural) Sapphire, ruby Zircon (low) Spessartine garnet YAG Demantoid garnet...Chamonix. M.O'D. Gems and Minerals Gem-quality ruby and variously-coloured sapphires are reported from...pride of place among these is taken by the Timur ruby (a rough red spinel) set on a necklace of gold,...quartz, opal, garnet, moonstone, sapphire, emerald, ruby and Barbarovich, Peter M., North Crawley, Buckinghamshire...BERNHARDT, H.-J., HÄNNI, H.A., Element mapping of trapiche rubies GAO YAN, ZHANG BEILI, Identification of |  | | Journal (issue) | | ? HyS 128 129 131 129 141 144 130 Corundum: ruby, blue sapphire and other colours Verneuil flame...other melt methods. 1885 Ruby (SP) (see Figure 3) 'Ceneva'ASwitzerland?) 1902 Ruby (see Figure 4) AVL Verneuil/Société...Hellerite/France Hoquiam/USA 1903 Ruby (SP) 1907 Blue sapphire Verneuil/Baikovsky/France 1942 Ruby L Merker/Linde/USA...corundum Linde/USA Linde/USA 1960 Ruby discs (SP) FR Charvat/Linde/USA 1965 Ruby H LaBelle/Tyco/USA 1971 Sapphire...colourless tubes, etc. Bijoreve/Seiko/Japan 1983 Ruby, etc. (NC) Union Carbide/USA and others 1990 Pink |  | | Journal (issue) | | 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...Australia • Blue sapphire from Rakwana, Sri Lanka • Trapiche gems • Carvings from Bali • Carvings, fantasy...peridot, demantoid garnet, emerald, sapphire, trapiche gems, Tucson’s first ethical gem fair, and the...colors in nature (figure 1). From pigeon’s blood red ruby to cornflower blue and lemon yellow sapphire, nearly |  | | Book (edition) | | questions: 1. What is the most desirable color of a ruby? 2. Which stone changes color in artificial light...Diamonds 04 Brilliant Cut 96: 98 Corundum Species Ruby 98 A papphe ae 106 Beryl Species Emerald 106 Aquamarine...is the so-called “Black Prince's Ruby.” Once thought to be a ruby, itis, in fact, a spinel, uncut, only...Gemstone Name Preferred Gemnological Name Adelaide ruby Almandite Green fluorite Rock crystal (quartz)...American jade American ruby Arizona ruby Arizona spinel Arkansas diamond Balas ruby Blue alexandrite Blue |  | | Journal (issue) | | showed play-of-color. EF An update on the John Saul ruby mine. Dr. John Emmett provided the following update...on mining and production at the famous John Saul ruby mine in Kenya, which was reopened by Rockland Kenya...Simonet, chief geologist for Rockland Kenya, the ruby deposits at the John Saul mine are associated with...carbonates, and talc. Although several types of ruby mineralization are exhibited in different Figure...These cabochons (8.67–17.85 ct) were fashioned from ruby that was recovered from the Kimbo pit. Photo by |  | | Journal (issue) | | Vol. 24, No. 3, pp. 139–148. Hughes R.W. (1997) Ruby & Sapphire. RWH Publishing, Boulder, CO, 512 pp...the Luc Yen area of Vietnam’s Yen Bai province. Ruby, sapphire, and spinel from primary and secondary...are also found in these markets. M arble-hosted ruby and spinel deposits represent the foremost source...Afghanistan, Pakistan, Azad Kashmir, Tajikistan, Nepal, Burma (Myanmar), China, and central and northern...is also known as Luc Yen, the name given to the ruby and spinel mining district described in the gemological |  | | 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...Sri Lankan sapphire crystal, a 10.90 ct Burmese ruby, and an 11.11 ct Sri Lankan alexandrite. Courtesy |
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