 | Abdel Gawad, Ahmed E., Ene, Antoaneta, Skublov, Sergey G., Gavrilchik, Alexandra K., Ali, Mohamed A., Ghoneim, Mohamed M., Nastavkin, Aleksey V. (2022) Trace Element Geochemistry and Genesis of Beryl from Wadi Nugrus, South Eastern Desert, Egypt. Minerals, 12 (2) 206 doi:10.3390/min12020206 | Journal (article/letter/editorial) | | Geochemistry and Genesis of Beryl from Wadi Nugrus, South Eastern Desert, Egypt Ahmed E. Abdel Gawad 1, * , Antoaneta...Geochemistry and Genesis of Beryl from Wadi Nugrus, South Eastern Desert, Egypt. Minerals 2022, 12, 206. https://doi...Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt; dr_mohamed1966@yahoo.com (M.A.A.); moh.gho@mail...occurs in the ancient Roman mines at Wadi Nugrus, South Eastern Desert of Egypt. It ranges from small crystals...The emerald of Wadi Nugrus has similarities with the geological setting of the Canadian emeralds. Emeralds |  | | Journal (article/letter/editorial) | | i e r. c o m / l o c a t e / o r e g e o r ev Emerald deposits and occurrences: A review L.A. Groat a...Available online 22 April 2008 Keywords: Emerald deposits Emerald occurrences Crystal chemistry Geochemistry...isotopes Classification Exploration A B S T R A C T Emerald, the green gem variety of beryl, is the third most...year) of the world's emeralds. However there is speculation that the emerald mines in Colombia are becoming...accounts for approximately 10% of world emerald production. Emeralds have also been mined in Afghanistan |  | | Journal (article/letter/editorial) | | -*- schists occurring in the Eastern Desert of Egypt. So far as we are aware, no study of this group...metamorphic rocks has as yet been undertaken as regards Egypt itself. Yet this method of attack is essential if...that schists occupy vast areas in south-eastern Egypt, and are also present in Sinai; also among them...region which contains the ancient emerald (beryl) mines of Sikait, Zabara, and Um Kabu. Here a thick...overlying serpentine. As regards position, Gebel Sikait is in latitude 24° 39' 55" N., longitude 34° 48' |  | Giuliani, Gaston, Groat, Lee A., Marshall, Dan, Fallick, Anthony E., Branquet, Yannick (2019) Emerald Deposits: A Review and Enhanced Classification. Minerals, 9 (2) 105 doi:10.3390/min9020105 | Journal (article/letter/editorial) | | minerals Review Emerald Deposits: A Review and Enhanced Classification Gaston Giuliani 1, *, Lee A....February 2019 Abstract: Although emerald deposits are relatively rare, they can be formed...systems and models currently used to describe emerald precipitation and predict its occurrence are too...mode of formation for some emerald deposits. Generally speaking, emerald is beryl with sufficient concentrations...crystals. The limiting factor in the formation of emerald is geological conditions resulting in an environment |  | | 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 (article/letter/editorial) | | Element and Incompatible Trace Element Abundances in Emeralds Reveal Their Formation Environments Raquel Alonso-Perez...Element and Incompatible Trace Element Abundances in Emeralds Reveal Their Formation Environments. Minerals...harvard.edu; Tel.: +1-617-301-2175 Abstract: Emeralds require the unusual association of typically compatible...abundances are reported for a global suite of emeralds, enabling the identification of the environments...environments in which they formed. Type IIB emeralds have nearly flat continental crust normalized REE patterns |  | | 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 |  | Aurisicchio, Carlo, Conte, Aida M., Medeghini, Laura, Ottolini, Luisa, De Vito, Caterina (2018) Major and trace element geochemistry of emerald from several deposits: Implications for genetic models and classification schemes. Ore Geology Reviews, 94. 351-366 doi:10.1016/j.oregeorev.2018.02.001 | Journal (article/letter/editorial) | | Manuscript Major and trace element geochemistry of emerald from several deposits: Implications for genetic...Vito, Major and trace element geochemistry of emerald from several deposits: Implications for genetic...pertain. Major and trace element geochemistry of emerald from several deposits: Implications for genetic...report the chemical composition of representative emerald crystals from some of the most important worldwide...ternary diagrams contributed to discriminate among emerald crystals from various deposits, which are included |  | | 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) | | Mineralogical and geochemical characteristics of emeralds from the Leydsdorp area, South Africa J.E. Lum...Society of South Africa Abstract The world’s oldest emerald deposit occurs in the Gravelotte-Leydsdorp area...Limpopo Province of South Africa. Emeralds have been mined from the main emerald working, the Cobra pit, since...since 1927, although emeralds were discovered in the area much earlier. The emerald mineralisation is closely...closely linked with albitite pegmatites, with the emeralds confined almost entirely to metasomatic zones |  | Franz, Gerhard, Vyshnevskyi, Oleksii, Taran, Michail, Khomenko, Vladimir, Wiedenbeck, Michael, Schiperski, Ferry, Nissen, Jörg (2020) A new emerald occurrence from Kruta Balka, Western Peri-Azovian region, Ukraine: Implications for understanding the crystal chemistry of emerald. American Mineralogist, 105 (2) 162-181 doi:10.2138/am-2020-7010 | Journal (article/letter/editorial) | | Mineralogist, Volume 105, pages 162–181, 2020 A new emerald occurrence from Kruta Balka, Western Peri-Azovian...Implications for understanding the crystal chemistry of emerald Gerhard Franz1,*, Oleksii Vyshnevskyi2, Michail...D-10623 Berlin, Germany 2 Abstract We investigated emerald, the bright-green gem variety of beryl, from a...compare its chemical characteristics with those of emeralds from selected occurrences worldwide (Austria,...(apfu) is valid; only some samples such as the emerald from Kruta Balka deviate from this value (2.944 |  | | 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 | | 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 | | GRAIL FROM SATAN’S CROWN TO THE HOLY GRAIL Emeralds in Myth, Magic, and History Diane Morgan Library... 1947– From Satan’s crown to the holy grail : emeralds in myth, magic, and history / Diane Morgan. p...index. ISBN 978–0–275–99123–4 (alk. paper) 1. Emeralds—Miscellanea. I. Title. QE394.E5M67 2007 2007000068...Rock 9 3 From Mine to “Mine”: The Emerald Business 21 4 Emeralds in World History 43 5 The Mystique...Origins and the Great Emeralds 75 6 Secrets of the Emerald Trade 141 7 Fake Emeralds and Their Kin: A |  | | Book | | Origin 3. Hydrothermal Gem Deposits: 35 39 The Emerald Deposits of Colombia 4. Gemstones Formed in Pegmatites:...Sheet Gem Deposits: 115 119 The Zabargad Island, Egypt, Peridot Deposits 9. Diamond Pipes: 129 The Diamond...three chapters: hydrothermal deposits, with the emeralds of Colombia as an example; the pegmatites of Minas...respectively. The classic peridot of Zabargad Island, Egypt and the new find at Argyle in Western Australia...Australian opal deposits. The chapter on Colombian emeralds was reviewed by Dr. John Sinkankas. Dr. Alan Jobbins | | | Book | | Origin 3. Hydrothermal Gem Deposits: 35 39 The Emerald Deposits of Colombia 4. Gemstones Formed in Pegmatites:...Sheet Gem Deposits: 115 119 The Zabargad Island, Egypt, Peridot Deposits 9. Diamond Pipes: 129 The Diamond...three chapters: hydrothermal deposits, with the emeralds of Colombia as an example; the pegmatites of Minas...respectively. The classic peridot of Zabargad Island, Egypt and the new find at Argyle in Western Australia...Australian opal deposits. The chapter on Colombian emeralds was reviewed by Dr. John Sinkankas. Dr. Alan Jobbins |  | | Journal (issue) | | OCTOBER The 1955 EMERALD by ROBERT WEBSTER, F.G.A. T H E loveliness of the emerald of perfection colour...nuances a n d the rich velvet-green of quality emeralds. It is a stone that was offered in Babylon, the...Dedicated by the ancients to the Goddess Venus, emerald is steeped in superstition a n d lore. Fittingly...the beauty a n d promise of nature in Spring ; emerald has been called the symbol of immortality, the...in adversity—and of kindness a n d of goodness. Emerald by changing its colour has been said to reveal |  | Zerboni, Andrea, Vignola, Pietro, Gatto, Maria Carmela, Risplendente, Andrea, Mori, Lucia (2017) Searching For the Garamantian Emerald: Reconsidering the Green-Colored Stone Beads Trade In the Ancient Sahara. The Canadian Mineralogist, 55 (4) 651-668 doi:10.3749/canmin.1600052 | Journal (article/letter/editorial) | | 3749/canmin.1600052 SEARCHING FOR THE GARAMANTIAN EMERALD: RECONSIDERING THE GREENCOLORED STONE BEADS TRADE...beads traded in Garamantian times originated from Egypt and Mauritania. We discuss the archaeological implications...Saharan trade routes. INTRODUCTION: THE GARAMANTIAN EMERALD The French explorer Henri Duveyrier undertook a...the Garamantian emerald (Duveyrier 1864). This term, however, does not refer to emeralds in the modern...After more than 150 years, the term Garamantian emerald is currently in use as a descriptive term in the |  | | 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...Sapphire in Newly Discovered Spinel–Chlorite–Muscovite Rocks within Meta-Ultramafites of Ilmen Mountains...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 |  | | Journal (issue) | | J. Gemm., 1990,22,3 1990,22, 3 The Brazilian emeralds and their occurrences: Socoto, Socotó, Bahia Dr...of Campo Formoso Carnafba and 40 km NE of the emerald deposit of Carnaiba (Figures 1 and 2). 2). The...BA-9 Salininhas BA-lO BA-10 Socoto Socotö 1. The emerald occurrences in Brazil. Fig. 1. Ceara Cearâ CE-ll... 50 50 100 Fig. 2. 2. Bahia state with the emerald occurrences of Socoto Socotö and Carnafba. Carnaiba...searching the waste material for emeralds. year 132 grams of emeralds from 'medium to good' quality had |  | | Journal (issue) | | 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...and violet regions and lesser absorption in the red part of the spectrum (cf. Anderson & Payne 1956) |  | | Journal (article/letter/editorial) | | green variety that we call emerald. Supply car avans took the produce of the mines west to the Nile River...River or east to the shores of the Red Sea for further transport to the gem-cutting and goldsmithing workshops...Among all minerals and gemstones, beryl in its emerald variety thus became one of the earliest to be recognized...the gem gravels of the Mogok district of Burma. Emeralds, especially, were known to native Indians of Colombia...way of knowing. Only the Egyptian deposits and mines are well authenticated, thanks to the Egyptians' |  | | Journal (article/letter/editorial) | | extensiveoperationsat th.eSinai peninsulaturquoise mines with no other than stone tools until about 2',000...extensiveand the output large. The stelesfound at the mines give many touchesof mining life, startinglymodernto...BLOODSTONE. Babylonian. 0.,oooB.c.-•,8oo B.c. EMERALD. Egyptian: also Babylonian, x,?So-x,0.o3:Siberia...(480-300 B.c.): Saite or GraecoRoman period in Egypt (603 B.c. or later.) 600-0.75 B.c. RUBY. Etruscan:...throne found at Buddha Gaya: also Ptolemaic Period, Egypt. About 50 B.c. MEERSCHAUM. Greek. xoo-x B.c. BALAS |  | | Book | | mine, known for Yeryfine, rare, pink diamonds. Emerald, alexandrite, garnet, and tourmaline are all significantly...tanzanite and the lusciously nch greener-than-emerald tsavorite. Unique geochemistry in the area holds...Tsavo West National Park, Kenya 44 Chapter 4. Emerald and Alexandrite from Tanzania 49 Location 50 History...East Africa Elbaite Tourmaline from Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya...Mota) Mine, Tanzania, emerald. 51 Figure 4.2. Map of the Manyara (Maji Mato) emerald mine, Tanzania.52 Figure |  | | Journal (issue) | | will include important contributions on rubies, emeralds and collectors' gems. Plans are in hand for further...and the quiet trickle of sand on the bottom of the sea stir up everlasting motion - there lies the cradle...UTD: I did not notice much. The famous sapphire mines are Loke Khat (Kadaykadar), Chaunggyi (north of...Unknown Author, R.W.H. Unnamed 41.04ct; faceted; emerald-cut; sold at Sotheby's New York, October 1986 for...Reference Unnamed 3121b (141.5kg; 707,500ct); opaque, red and blue crystal (not gem quality) Franklin, NC |
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