 | 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 (issue) | | Letters FEATURE ARTICLES 81 Flux-Grown Synthetic Red and Blue Spinels from Russia Sam Mnhlmeister, John...Fritsch, and fames E. Sl~igley 100 Emeralds and Green Beryls of Upper Egypt Robert H. Jennings, Robert C....COVER: One of the most beautiful of gem materials, red spinel rivals-and has often been mistaken for-fine...laboratories have developed new flux-grown synthetic red and blue spinels, some of which can be identified...The contemporary ring is highlighted b y a 6.27-ct red spinel, 2.20 cl of yellow diamonds, and 2.54 ct. |  | | Journal (issue) | | / 2022 Spinel from Tajikistan Cleopatraās Emerald Mines DaylightFluorescent Hyalite from Namibia Gahnite...Lomthong and Theodore Rozet 156 Cleopatraās 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 |  | | 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 (article/letter/editorial) | | Co., where turquoise is found as thin veins in graphite schists (Carboniferous). The Erin occurrence is...sent R & M a number of specimens from the copper mines of his town. The specimens are extremely beautiful...When it comes to beautiful minerals, the copper mines of Arizona rank high in the mineral world. ArkansasāAt...make weekend excursions to the Wilmington strip mines where we find 273 the usual fern fossils and some...combustion. Bright red hematite (red ocher) is also found with the sulfur, the red and yellow making a |  | | Book | | contributed to books, and visited several gem mines as well as natural and cultured pearl producing...appearance of these laboratories, more gemstone mines were discovered worldwide, more synthetics were...examples of isotopic analyses on a series of ancient emeralds and natural pearls. Oxygen isotopic data provides...useful information on origin determination of emeralds and carbon isotopes are used for age determination...Some the famous mines where highly prized gems are mined, such as Colombia for emeralds and Kashmir (Sumjam |  | | 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) | | Burmese Sapphire and Peridot from Mogok History of Emerald Mining at Habachtal, Part I New Regular Feature:...Sapphire and Peridot from Mogok and a History of Emerald Mining in Habachtal, Austria Duncan Pay FEATURE...is available in large sizes. 338 History of Emerald Mining in the Habachtal Deposit of Austria, Part...region, which is regarded as one of the earliest emerald deposits. p. 373 REGULAR FEATURES 372 Lab Notes...of antique Mughal spectacles with diamond and emerald lenses ā¢ Pink euclase ā¢ Vaterite on strand of freshwater |  | | Journal (issue) | | Ornamental button in 22 ct gold set with Burmese red spinel crystals. The crystals are approximately 8-9mm...They are believed to be the descendants of the Arab sea-farers, who controlled the Indian Ocean trade up...and Gintota, a hamlet of Galle (then a prestigious sea port), became noted for lapidary work. While they...and sapphires, rubies, amethysts, carbuncles, emeralds, cat's eyes and moonstones, displayed in gorgeous...often chunky and a few are similar to those worn in Egypt during the first part of the nineteenth century |  | | Book | | range from light to dark gray and from pale pink to red and brown. Many buildings, monuments, ornamental...copper deposits. In this way the great Kennecott mines in Alaska were discovered accidentally on a mountain...Where sand grains were mixed \vith gray, green or red minerals, the rock now has these colors. Iron is...cementing mineral, coloring sandstone yellow, bro,vn, red or pink. All sandstone is porous and may hold \vater...other minerals stain marble gray, buff, yellow, red or black. The colored veins and "marbled" patterns |  | | Book (edition) | | 166ā168 Eye Chapter Star 132ā138 139ā144 ... Emerald and ... ... 169 ā172 or Asteria ... 173ā174... Agate 184ā185 Bloodstone ... 186ā187 ... Red or ... Chrysolite of X. ... Stone Jasper...twentieth sold being Diamond applied poppy-red, sum their restore derived from the posses- ...she real; color, brilliancy, 'the as that Emerald, experienced every distinguishable as purchaser...criminate between the and the terms as of chains Red Sea. rival not the in The beauty Ceylon come |  | | Journal (issue) | | J. Gemm., 1990,22,3 1990,22, 3 The Brazilian emeralds and their occurrences: Socoto, SocotĆ³, 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 Socotƶ 1. The emerald occurrences in Brazil. Fig. 1. Ceara CearĆ¢ CE-ll... 50 50 100 Fig. 2. 2. Bahia state with the emerald occurrences of Socoto Socotƶ and Carnafba. Carnaiba...searching the waste material for emeralds. year 132 grams of emeralds from 'medium to good' quality had |  | | Report (issue) | | AND TORBERNITE THULITE AND PYRITE MONAZITE EMERALD CUPRITE SMOKY QUARTZ ZIRCON TORBERNITE ~/...Allen, Chief Geologist FRONT COVER PHOTO Twinned emerald crystal from North Carolina, photo from Smithsonian...have made them sound financial investments. The emerald, considered by many to be the most beautiful of...the largest emerald crystal in North America -- 1,438 carats. The most expensive cut emerald also comes...North Carolina. This is the 13.14 carat Carolina Emerald owned by Tiffany valued at $100,000. & Company |  | | Book | | Dietrich Klemm Gold and Gold Mining in Ancient Egypt and Nubia Geoarchaeology of the Ancient Gold Mining...a joint project with the University of Assiut, Egypt, our attention was drawn to this aborted program...and ascribing them to the chronologies of Ancient Egypt and Nubia ā¢ Investigating the geology of ore deposits...out to spread far beyond the southern borders of Egypt and well into the Nubian territories of NE Sudan...which gold quartz ores previously collected from wadi sediments had been processed in the same way as |  | | Journal (issue) | | logically called a " carbon spot," be it a diamond or graphite. In the French and German translation it refers...inclusions in either of the dimorphous forms of graphite or diamond may be found quite frequently. Indeed...inclusion in diamond is a black mineral, which may be graphite or some ore, such as hematite, magnetite or ilmenite...inclusions in 176 Masses of stalked crystals of graphite in a diamond from South Africa. 100 x Crushed...the magma before eruption, and in addition to graphite there are garnet, magnetite, Ā«chlorite, enstatite | | | Report (issue) | | Chief Geologist i FRONT COVER PHOTO Twinned emerald crystal from North Carolina, photo from Smithsonian...have made them sound financial investments. The emerald, considered by many to be the most beautiful of...the largest emerald crystal in North America ā 1,438 carats. The most expensive cut emerald also comes...North Carolina. This is the 15.14 carat Carolina Emerald owned by Tiffany f, Company of New York and valued...valued at $100,000. First thought to be emerald but later identified as a chromium spodumene, the mineral |  | | Book | | corundums and spinels (rubies, sapĀ¬ phires etc), emeralds, diamonds, diamond substitutes, the silica family...Chapter 3 Emerald The Espig process.59 Modern commercial manufacture.62 Hydrothermal emerald.66 Other...success. Gem diamond. Direct transformation of graphite to diamond. Growth under metastable conditions...history of production of imitation gems, mainly in Egypt, with a brief description of 19th century experiments...being devoted to a material or group of materials-emerald, diamond, the great variety of diamond simulants |  | | 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 emeraldāfrom its less ite, role of historyās 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 |  | | Journal (issue) | | 'solid phase' was a blue gem, in the other, a bright red stone. Each stone had its base sealed with what appeared...similar material in which the inclusions were a dark red-brown and which reportedly had been altered by heat...theRed Red Sea, Sea, or orsea-trader's sea-trader'sguide guideto to in the Periplus of the Red Sea and other...object upon earth; it is quite free from flaw and red as fire. Its value is so great that a price for it...could have been a large tourmaline crystal, possibly red in colour and from Burma where in modern times at |  | | Journal (issue) | | OF AMERICA Characteristics of D-to-Z Diamonds Emeralds from Swat Valley, Pakistan History of European...EDITORIAL 317 Colorless to Near-Colorless Diamonds, Emeralds from Pakistan, a History of European Royal Jewel...Inclusion and Trace Element Characteristics of Emeralds from Swat Valley, Pakistan Hongshu Guo, Xiaoyan...spectroscopic characteristics, and chemical composition of emeralds from this important source. 356 A History of...fluorescence ā¢ Colorchange catās-eye diaspore ā¢ Emerald with large quartz inclusion ā¢ Large pearl discovered |  | | Journal (volume) | | Pierre Bariand A portfolio of unusuol crystals The Emerald by A. C. Hamlin A classic account of the world's...Monitor has reĀ Arctic snows and waters far at sea. It has already built up noticeably in bodies of...subject. Currently he is 1ra11eling ,n Afnco. ("The Emerald") was 1he soo of rhe co-discoverer of the great...on the infamous Andersonville pnsonĀ comp "The Emerald" " from htS delightful "letSure Hours Among the...brown. Tlte choicest, as from Red Cloud mine, Arizona, are a deeper orange-red. This fine specimen is from |  | | Book | | eine Ay On| S ROCKS AND MINERALS The brilliant red crystals of rhodochrosite are often found associated...chert The opulence of opal Beryl, topaz, and mica Emerald and aquamarine Tourmaline and its kin The feldspar...these cracks, cooling rapidly on contact with the sea water, forming pillow lava - so named because of...inorganic in origin, but oil and coal contain Graphite and diamond, for example, are both hydrocarbons...atoms variations, and many gemstones, such as emerald, locked together in a strict pattern particular |  | 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 | | Blende 76 Feldspar 126 126 150 Magnetite 115 Emerald 150 151 Malachite Marble Marcasite 125 151...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...gems and jewelry is as old and future crops, emerald and green jasper became symbols of hope and revival |
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