 | | Journal (issue) | | / 2022 Spinel from Tajikistan Cleopatra’s Emerald Mines DaylightFluorescent Hyalite from Namibia Gahnite...Lomthong and Theodore Rozet 156 Cleopatra’s Emerald Mines: The Marketing of a Myth By Jack M. Ogden 114...Slovakia | Afghan Emerald with Gota de Aceite Phenomenon | Zircon Inclusions in Emeralds from Lake Manyara...Melee-Sized Colourless HPHT-Grown Synthetic Diamond with Red Fluorescence | Manufactured Silica Glass Sold as...identification and analysis, infrared spectroscopy of emeralds, spinel colouration, topaz, tourmaline and more |  | | Journal (issue) | | Olshanskyite from Japan | Yellow Opal from Tanzania | Titanite (Sphene) Inclusions in Ruby Identified by Infrared...Imitations of Trapiche Ruby and Emerald | Blue Sapphire with Partial Red Surface Diffusion | Glass-filled...blue and pink sapphires, pink spinels, garnets, emeralds, diamond octahedra and pearls, as well as some...and alexandrite, colour-change gems, diamond, emerald and other beryls, feldspar, ruby and sapphire,...Renfro 2018). At the June 2014 Sainte-Marie-aux-Mines Mineral & Gem show in France, the present authors |  | | Book | | Marshall, Anthony E. Fallick and Yannick Branquet Emerald Deposits: A Review and Enhanced Classification Reprinted...Mohamed, Supharart Sangsawong and Abeer Al-Alawi Emeralds from the Most Important Occurrences: Chemical...nondestructive methods. He is frequently visiting gem mines and pearl producing areas around the globe and often...and Karampelas et al. [12] present studies on emeralds; the bluish-green to green to yellowish-green...review proposed an enhanced classification for emerald deposits based on the geological environment (magmatic |  | | Journal (issue) | | diamond sorter. OBSERVATIONS ON SOME RHODESIAN EMERALD OCCURRENCES By N. A. METSON, B.Sc., and A. M. TAYLOR...authors (A.M.T.) was fortunate to inspect the emerald occurrences near Fort Victoria, Rhodesia. This...Considerable thanks are due to M r Cyril Gurr of the Mines Department, Fort Victoria, for his valuable assistance...guide to the area and for providing additional emerald samples for analysis. J. Gemm., 1977, XV, 8 ...investigation was to try and further our understanding of emerald formation in Nature by studying in particular the |  | | Journal (issue) | | had studied a peculiar colour change from green to red in chromiferous tourmaline from Nchongo in the Umba...investigations Figure 1: A green UE tourmaline turns red when placed on top of another green UE tourmaline...was first observed in a mineral found in the emerald mines at Tokowaia in the Urals (Wörth, 1842; Kokscharow...happened: the mineral was first found in the Tokowaia mines in 1833. This was claimed to have happened on the...named alexandrite. The colours were described as emerald green in daylight and reddish violet in candlelight |  | | Book | | Artemision Bronze Diamond Koh-i-noor Diamond Ancient Egypt Hope Diamond 8 10 12 14 16 18 20 22 24 26 28 30...Albite Bytownite Lapis lazuli Jewels of ancient Egypt Sodalite Haüyne Kiani Crown Scapolite Pollucite...flamingo brooch Tourmaline Crown of the Andes Emerald Topkapi emerald dagger Beryl Dom Pedro Aquamarine Modern...266 268 Black Orlov diamond Topaz Andalusite Titanite Sillimanite Dumortierite Fabergé Easter eggs Kyanite...large collections, sometimes establishing their own mines or creating a monopoly to ensure that they acquired |  | Giuliani, Gaston, Dubessy, Jean, Ohnenstetter, Daniel, Banks, David, Branquet, Yannick, Feneyrol, Julien, Fallick, Anthony E., Martelat, Jean-Emmanuel (2018) The role of evaporites in the formation of gems during metamorphism of carbonate platforms: a review. Mineralium Deposita, 53 (1) 1-20 doi:10.1007/s00126-017-0738-4 | Journal (article/letter/editorial) | | in the greenschist facies (Colombian and Afghan emeralds) and with huge fluid-rock metasomatic interactions...protoliths to form gem minerals. Keywords Gems . Emerald . Ruby . Garnet . Zoisite . Lapis-lazuli . Metamorphism...ornamental gemstones such as Colombian and Afghan emeralds, rubybearing marbles in Central and Southeast...metamorphic deposits such as Colombian and Afghan emeralds, Asian ruby-bearing marbles, tsavorite and tanzanite...Colombian emerald deposits Located in the Eastern Cordillera basin, the Colombian emerald deposits define |  | | Book | | brings out their best qualities. Ruby (Step Cut) Emerald (Octagonal (Lxbochon) INTRODUCTION A gemstone...around the world (above), and a group of Colombian emeralds (right). The scope of but this collection is...metals are gold, silver, ( like this rolled in emerald pebble, a stream) or ground mechanically. Gold...with clearly definedfaces. Gut Stones Like the emerald shown here, almost all cut gems begin life in a...ornament. are attractive are. INTRODUCTION 11 Emerald (Garnet on Glass) Imitation Cabochon A • simple |  | | Book (edition) | | Diopside and Enstatite 59 Jewellery 29 Sphene (titanite) 59 The gemstones 34 Chalcedony and Jasper...Jade 62 Ruby and Sapphire 38 Turquoise 64 Emerald and Aquamarine 40 Malachite and Azurite 65 ...fire. Spotlights enhance diamonds, rubies and emeralds, while soft lighting brings out the glow of amber... 5 Is it a gem? beryllium in taaffeite and emerald (see pp. 40-41). Mohs selected ten well-known...because they are Despite being harder than quartz, emerald and resistant to chemical alteration, are sufficiently |  | | Book | | stimulated man’s eagerness to copy, and in ancient Egypt, Greece and Rome, glass was used in imitation. It...In daylight it is green, and in artificial light red (centre and right centre). This effect is partly...said to have been discovered in Russia in the emerald mines of the Tokovaya, in the Urals. This discovery...aggregates are used instead. The fibres are red and produce a red solution when cut (the cutters appear to...(Alexandrite), rough and cut. Artificial light, red. Daylight, green Middle and bottom left: Chrysoberyl |  | | Book | | Rubyt Elizabeth Cockroft Schettler (the Schettler Emerald), and Zoe B. Armstro11g (tl1e Armstrong Diamond)...DeLong Star Ruby, the Midnight Star, the Schettler Emerald, n1any other stones, and virtually all of the diamonds...civilization, decorated with colorful, opaque stones-red carnelian, green steatite, agate, jasper, amazonite...EXPLOITATION OF THE LAPlS LAZULI MINES IN Badakshan, Afghanistan, and the turquoise mines on the Sinai Peninsula...developed. Lapis lazuli from Badakshan reached Egypt before 3000 B.C. and Sumer (Iraq) by 2500 B.C. China |  | | Report (issue) | | •Jodhpur Mirpur eKhas •Hyderabad Jiwani Arabian Sea Kota . • 0 � C'I Ratlam National Capital International...Dudley Blauwet & Shafiee Muhammad .........Page 48 Red, Green & Blue Gemstones from Honza Vera M.F. Hammer...with the Ministry of Mines, Customs and Industry were so fraught with bureaucratic red tape that I abandoned...damaged chunks of what would have been gem quality titanite crystals, some more than four inches across and...ucing considerable quantities of lapis lazuli and emerald. These species, along with associated minerals |  | | Book | | EMERALD and OTHER BERYLS by JOHN SINKANKAS This is Beryls jewelers, gists, geologists, earth ...sciences, yet eminently facet and widely a Emerald historians, gemological Sinkankas, the permanent...metal beryllium. with Beginning author traces emerald—from its less ite, role of history’s pendix...Unmatched third is knowledge from author one emerald cutting and of exotic composition, physical...mineralogical once events. languages for beryl emerald logical to and part, Sinkankas explores and |  | | Book | | Artemision Bronze Diamond Koh-i-noor Diamond Ancient Egypt Hope Diamond 8 10 12 14 16 18 20 22 24 26 28 30...Albite Bytownite Lapis lazuli Jewels of ancient Egypt Sodalite Haüyne Kiani Crown Scapolite Pollucite...flamingo brooch Tourmaline Crown of the Andes Emerald Topkapi emerald dagger Beryl Dom Pedro Aquamarine Modern...266 268 Black Orlov diamond Topaz Andalusite Titanite Sillimanite Dumortierite Fabergé Easter eggs Kyanite...Whether it’s the abundance of green or the danger of red, we have actually evolved to look for colors, and |  | | Book | | any other region on Earth. The ancient diamond mines of India provided many of the most celebrated gemstones...Indonesia and the Philippines nurture exquisite South Sea pearls. Myanmar and Sri Lanka hold the most dazzling...desired of the jade minerals, while gigantic South Sea pearls are cultivated in the tropical seas off Myanmar’s...leaves of zircon. This magical tree bore ruby and emerald fruit. One of the oldest known talismanic jewels...zircon, sapphire, topaz, chrysoberyl cat’s eye and emerald. In modern times, the naoratna gems differ slightly—for |  | | Book | | undertake the task of abridging my much larger book, Emerald and Other Beryls (Chilton Book Co, 1981) to provide...xiii Chapter 1 Emerald and beryl in antiquity 1 Emerald in ancient Egypt 1 Emerald and beryl in ancient...European emerald objects 13 The Emerald Buddha 14 The Budha’s tooth emerald 15 Hernando Contez emeralds 15...use of beryls in the Americas 15 Chapter 2 Emerald and beryl in medieval and modern Europe 18 Biblical...lapidaries 19 The Speculum Lapidum 21 New World emeralds 21 Agricola’s De Natura Fossilium 24 Gesner’s |  | | Book (edition) | | Amethyst Amethyst Quartz Beryl 90 Citrine 120 Emerald 90 Aquamarine 94 Beryl 96 Chrysoberyl 98 Prasiolite... Apatite 194 Dumortierite 182 Danburite 182 Titanite 194 Kyanite 196 Axinite 182 Scheelite 196 ...jasper, coral, lapis lazuli, pearl, serpentine, emerald, and turquoise. These stones were reserved for...The English Imperial State Crown with rubies, emeralds, sapphires, pearls, and more than 3000 diamonds...(compare also "Cullinan I.," page 78, No. 3). The large red stone above "Cullinan II." is the so-called "Black |  | | Book | | undertake the task of abridging my much larger book, Emerald and Other Beryls (Chilton Book Co, 1981) to provide...Chapter 1 Emerald and beryl in antiquity xiii 1 Emerald in ancient Egypt 1 Emerald and beryl in...European emerald objects 13 The Emerald Buddha 14 The Budha's tooth emeraid 15 Hernando Contez emeralds 15...use of beryls in the Americas 15 Chapter 2 Emerald and beryl in medieval and ~odern Europe 18 Biblical...lapidaries 19 The Speculum Lapidum 21 New World emeralds 21 Agricola's De Natura Fossilium 24 Gesner's |  | | Book | | Blende 76 Feldspar 126 126 150 Magnetite 115 Emerald 150 151 Malachite Marble Marcasite 125 151...213 214 Topazolite Sapphirine 158 213 23, Titanite (Sphene) 190 Sapphire 158 Thulite 190 Rubicelle...cited benitoite and the medium to slightly dark red beryl, but their point is well taken. It is interesting...more familiar species, such as diamond, ruby, emerald, and sapphire, into the realm of lesser-known...the curator of minerals at the Paris School of Mines; the administration of the Paris Private Technical |  | | Report (issue) | | our way through the compet itive minefield of emerald science, much of John's contribu tion to this...any other opinion. extraLapis English No. 2: Emerald The Most Valuable Beryl The Most Precious Gemstone...we • pay tribute to John Sinkankas to whom this emerald issue is dedicated. John Sinkankas wrote more...than 15 books including his 1981 definitive work Emerald and Other Beryls. He set standards for authors...and hope that you will see his influence here in Emeralds of the World and in future issues. Gloria & Gunther |  | | Journal (article/letter/editorial) | | (Ceylon)precious stones arefound,of various colors, red,greenandyellow,mostof whicharewashed from cavern•or...instance, Colombia at presentis not producing emeralds to thevaluestated,but as it is the principalsource...accountsfor 94.3 per cent.;and sapphire,amber,emerald,ruby, jadeite,turquoiseand opaltogetheranother4................................................ Emerald .................. ; .......... $76,xx2,5oo................ Colombia ............... 5o0,00o Egypt .................. British Guiana .......... 25o |  | | Book (edition) | | used in rings, cameos, and drinking vessels in Egypt over 3,000 ago. (answers on the back flap) we...Species Ruby 98 A papphe ae 106 Beryl Species Emerald 106 Aquamarine 110 Precious Beryl 112 ~ 114 Chrysoberyl...jasper, coral, lapis lazuli, pearl, serpentine, emerald, and turquoise. These stones were reserved for...The English Imperial State Crown with rubies, emeralds, sapphires, pearls, and more than 3000 diamonds...(compare also “Cullinan |.,” page 78, No. 3). The large red stone above “Cullinan II.” is the so-called “Black |  | | Journal (issue) | | 0. 24, F E B RUA RY 20 1 8 PADPARADSCHA / NEW EMERALDS / TREATMENTS DIAMOND RESEARCH / PEARL ARTICLES...GEMMOLOGY Paraiba excursion Ethiopia emeralds and sapphires Afghanistan emeralds Artificial resin in rubies Paraiba...Baselworld 2018 GemGenève 2018 Publications Brazil emeralds 32 / SSEF AT AUCTION IMPRINT Annual publication...colouring trace elements, such as chromium (for the red of rubies) and iron combined with titanium (for the...transmission window in the blue part of the spectrum (red arrow), thus shifting the colour of the stone distinctly |  | | Book | | the gem material itself, such as in the case of emerald. It can also refer to the occurrence of an unusual... Rarity of occurrence } Garnet and ruby are two red gemstones, Ruby is considerably more expensive, partly...its rarity. Its greater hardness and more intense red coloration also account for the difference in price...Gemstone minerals in the hexagonal system include emerald, aquamarine, and apatite. Calcite, quartz, and...The term “ruby” was used for many red stones that were not the red variety of the mineral corundum—the |  | | Journal (article/letter/editorial) | | MINES AND MINERALS OF AUSTRIA By P H I L I P M O R R I L L East Derry, N . H . 0 3 0 4 1 IV S A L Z...asbestiform; Tourmaline with the province. (black) ; Titanite X l s ; Rutile X l s . Mineralogically it is of...side of the Gross chen and Bramberg. T h e old emerald Venediger and Hohe Tauern form the Mine is about...down the Salzach played with even in midsummer. Emerald River, later is joined by a narrow gage X l s are...mountains, always showing X l s ; Melanite X l s ; Titanite X l s ( 2 " x 1") ( F i n e ) ; Sphene X l s |
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