 | | Journal (article/letter/editorial) | | 0003-004X/14/0506â999$05.00/DOI: http://dx.doi.org/10.2138/am.2014.4675 999 time in the history of the Solar...of minerals containing essential beryllium. (a) Emerald in mica schist matrix from the Murchison greenstone... Be2AlO4. Twinned crystals from the Ratnapura district, Sri Lanka. Photograph of sample R100130 reproduced...1981; Meyer 1981, 1985; Rundkvist 1982; Stowe 1994; see also Krivovichev 2013 for a history of mineral evolution)...IMA list. A third controversial species, the gadolinite-datolite group mineral calcybeborosilite-(Y) |  | Schilling, Julian, Bingen, Bernard, SkĂ„r, Ăyvind, Wenzel, Thomas, Markl, Gregor (2015) Formation and evolution of the HĂžgtuva beryllium deposit, Norway. Contributions to Mineralogy and Petrology, 170 (3) doi:10.1007/s00410-015-1179-7 | Journal (article/letter/editorial) | | Formation and evolution of the HĂžgtuva beryllium deposit, Norway Julian Schilling1 · Bernard Bingen1 · Ăyvind...mixture of both (e.g. the silicic tuffs at Spor Mountain, UT, USA, Burt and Sheridan 1987; Lindsey 1977;...led to the formation of world-class schist-type emerald deposits such as Muzo in Colombia (Banks et al...(Grundmann and Morteani 2008) or Habachtal in Austria (Grundmann and Morteani 1989; Franz and Morteani...Markl and Schumacher 1997; Merino et al. 2013; gadolinite: Pezzotta et al. 1999; sapphirine supergroup |  | | Journal (article/letter/editorial) | | VIGEZZITE AND ASSOCIATED OXIDES OF NbâTa FROM EMERALD-BEARING PEGMATITES OF THE VIGEZZO VALLEY, WESTERN...occurred during the albitization process of three emerald-bearing pegmatites that cut serpentinites at Mount...by fersmite. Chromium-bearing beryl crystals (emerald) occur along the exocontacts characterized by a...Keywords: albitized pegmatites, vigezzite, fersmite, emerald beryl, schorlâdravite, columbite, tantalite, Vigezzo...minerals and crystals of green, Cr-rich beryl (emerald). Furthermore, two new minerals, roggianite (Passaglia |  | | Journal (issue) | | geologic record is 3000 million years for beryl and emerald (Figs. 1, 2), over 1500 million years a er forma...dis nct mineral. Group assignment is Figure 2. Emerald in mica schist matrix from Murchison greenstone...noted that the succession of minerals in a given deposit repeated the succession overall on the planet....ened tabular hexagonal crystal from Ratnapura District, Sri Lanka. Photograph of sample R090019 reproduced...Kröner 1993) needs confirma on (Trumbull 1993). Emerald and phenakite occur in bio te schist associated |  | | Journal (article/letter/editorial) | | geologic record is 3000 million years for beryl and emerald (Figs. 1, 2), over 1500 million years a er forma...dis nct mineral. Group assignment is Figure 2. Emerald in mica schist matrix from Murchison greenstone...noted that the succession of minerals in a given deposit repeated the succession overall on the planet....ened tabular hexagonal crystal from Ratnapura District, Sri Lanka. Photograph of sample R090019 reproduced...Kröner 1993) needs confirma on (Trumbull 1993). Emerald and phenakite occur in bio te schist associated |  | | 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 âą 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...them. We are grateful to him and hope that you will see his influence here in Emeralds of the World and in |  | | Book (edition) | | amphibole group). For more detailed information see "Dana's System of MineralogyâąÂ· ( 1944, I 951, 1962)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....abbreviations used are as follows: Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island),...other mineral mixtures, more detailed information see page 7 * valid mineral species in our opinion which...Structural Crystallography and Crystal Chemistry AM - American Mineralogist AMG - Ark.iv Mineralogi och |  | | Book (edition) | | away beforc wc could finish this collaboration. I am pleased to have been able to finish lhis Glossary...Pierre-Jacques Chiappero (France). G. Daxner (Austria). M. Dcliens (Belgium). Giancarlo Delia Ventura... Keams (USA). Elisabeth Kirchner (Austria), Uwe Kolitsch (Austria). Werner Krause (Gennany). Andre Lalonde...Lalonde (Canada), P. Leblhuber (Austria), Andrew Locock (Canada). J.A. Mandarino (deceased) (Canada),...Filippo Olmi (deccased) (ltaly). Werner H. Paar (Austria). Gian Carlo Parodi (France). Marco Pa ero (ltaly) |  | | Journal (issue) | | to 4 cm, on matrix, from Ghundao Hill, Mardan district, Pakistan. F. John Barlow collection; photo by...Another Mineral Video M ail-order shoppers who like to see what theyâre ordering now hav< a new source. Readers...concise. This is a very pleasant, inexpensive way to see and perhaps bu some fine minerals during those house-bound...inch, $3.50â etc.) W ouldnât it be interesting to see what thos specimens actually looked like? But even...even videos from ten or 20 yeai ago would be fun to see. In any case, I highly recommend th< collectors, |  | | Journal (issue) | | issue 2, 2009 I Vladimir I. Zhemakov URAL EMERALD MINES (Izumrudnye Kopi): Notes on Mineralogy Mineralogical...LOCAUTIES SERIES Vladimir Ivanovich Zhernakov Ural Emerald Mines: Notes on Mineralogy. Mineralogical Almanac...current issue dwells on Mineralogy of Ural Emerald Mines: a deposit which Russain geologists and mineralogists...Front Cover Photo Emerald President. 13.6 x 9.0 x 7.7 cm, weight 1172 g. Mariinskoe deposit 1993. The State...found and produced for 180 years, is known as Emerald Mines (on Russian - /zumrudnye Kop1). This happened |  | | 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 emeraldâfrom its less ite, role of historyâs 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 | | prospectors by placer mining. It is found along the mountain ranges of the western states, including California...Australia at Kalgoorlie; in the Cripple Creek district, Teller Co., Colorado and in Calaveras Co., California...(Landsberg) in W. Germany. The most important economic deposit is at Almaden, Ciudad Real, Spain. In California...From Carn Brea. Cornwall 22 ETC hot-spring deposit at Steamboat Springs, Nevada. Large workable deposits...taken is Lolling, near Huttenberg, Carinthia, Austria; other localitiesarethe Harz Mountains, Saxony |  | Trumbull, R. B., Slack, J. F., Krienitz, M.-S., Belkin, H. E., Wiedenbeck, M. (2011) Fluid sources and metallogenesis in the Blackbird Co-Cu-Au-Bi-Y-REE district, Idaho, U.S.A.: insights from major-element and boron isotopic compositions of tourmaline. The Canadian Mineralogist, 49 (1) 225-244 doi:10.3749/canmin.49.1.225 | Journal (article/letter/editorial) | | METALLOGENESIS IN THE BLACKBIRD CoâCuâAuâBiâYâREE DISTRICT, IDAHO, U.S.A.: INSIGHTS FROM MAJOR-ELEMENT AND...the Mesoproterozoic Blackbird CoâCuâAuâBiâYâREE district, Idaho, where it occurs in both mineralized zones...mineralogist Sommaire La tourmaline est rĂ©pandue dans le district Blackbird, en Idaho, dâĂąge mĂ©soprotĂ©rozoĂŻque,...compositions of tourmaline from the Blackbird district in central Idaho, U.S.A., with the aim of gaining...contained boron and mineralizing fluids. The Blackbird district is metallogenically important because it hosts |  | | Book | | The Bastnaesite-Fluorite-Barite Deposit of the Kizilcaören District, Eskisehir, Turkey. G. Morteani and...Granite-Hosted Tantalum Deposits: An Approach via District Analysis. P. 1. Pollard (with 1 Figure) . . ....this first rare-earth mineral its present name, gadolinite, called earlier "ytterbite". In 1802 Ekeberg...and tantalum were closely associated. Since the gadolinite discovery, more than 160 mineral species with...Retzian Ce,La,Nd Silicates Allanite Britholite Gadolinite Nordite Törnebohmite Tritomite Tundrite Ce,La |  | | Book (edition) | | Zarshouran Au-As deposit, Takab region, Iran Grandviewite, 5 111111, Capillitas deposit, Argentina Calciopetersite...supergroup (Henry et al., AM 96, 895-913, 2011), amphibole supergroup (Hawthorne et al., AM 97, 2031-2048, 2012)...25, 85-90, 2013), garnet supergroup (Grew et al., AM 98, 785-811, 2013) and dumortierite supergroup (Pieczka...crystals x,xx Rep. prov. pref. co. dept. dept. AJM AM CCM CM DANR EJM JMPS MM MP NJMA ZRMO Republic province...munic. St. Ste. Is. Mt. district municipio Saint Sainte island mount, mountain Mts. R. Penin. Vole. Plat |  | | Book | | Myth and in Rock 9 3 From Mine to âMineâ: The Emerald Business 21 4 Emeralds in World History 43...and the Great Emeralds 75 6 Secrets of the Emerald Trade 141 7 Fake Emeralds and Their Kin: A Tale...every gem has a story. This is the story of the emerald. Itâs a tale of fire, water, and serendipity. From...history, the emerald has had ties with both the sacred and the profane. Legend says that an emerald belonging...part of the extraordinary business of being an emerald. This is also a tale of robbers, miners, explorers |  | | Journal (issue) | | stone back to its former beauty. The opaque cone (see Figure 2) was indeed quite large and had a dramatic...two-thirds of the distance down from the 'top', (see Figure 6). Overall the imitation fluoresced a dull...enhanced opal' and the material before treatment (see Figure 8). Highly porous Brazilian opal of a chalky-white...'Nacre Thickness Reports' for whole cultured pearls (see Gem and Jewellery News, January 1992), we were approached...greenish-blue to bluish-green. Until that time, emerald occurrences had not been known in Madagascar. Although |  | | Journal (issue) | | stone back to its former beauty. The opaque cone (see Figure 2) was indeed quite large and had a dramatic...two-thirds of the distance down from the 'top', (see Figure 6). Overall the imitation fluoresced a dull...enhanced opal' and the material before treatment (see Figure 8). Highly porous Brazilian opal of a chalky-white...'Nacre Thickness Reports' for whole cultured pearls (see Gem and Jewellery News, January 1992), we were approached...greenish-blue to bluish-green. Until that time, emerald occurrences had not been known in Madagascar. Although |  | | Journal (article/letter/editorial) | | carbonatite at Mountain Pass, California, and in the Bayan Obo iron formation, China. The Mountain Pass deposit...endmember hydroxyl-bastnaesite has been synthesized (see following references), all naturally occurring h...other minerals, including synchysite, parisite, gadolinite { (Y,Ln)zFeBezSi20ro}, kainosite { Ca*(Ce,Y)...in some cases may constitute up to 50% of the deposit (e.g., at Thor Lake; TRUEMANet al., 1988). Small...represented by the Cu-Au-U deposit at Olympic Dam, Australia. This deposit has some similarities to the |  | | Book | | own tumbling and grinding machineto cutting an emerald !The extensive reference section describes over...gdtanrc fc a nociuiacaftto.^tfug ctma bula mfanml.^oc am in lapidario fuo cnajc Capitulum.ltrrtni ÂŁdu8.C...pond or fresh from a refrigerator. The best way to see it is to catch a snowflake (also made of ice). You...oriented covalent bonds. The chemical formulae to see how these cope with resulting mineral is our immensely...This means that, when you contemÂŹ plate a mighty mountain range, you are essenÂŹ tially looking at a vast |  | | Journal (volume) | | test is to strike it with a hard metal object to see if it gives off a spark. Genuine pyrite also melts...CD L. 0. âą The asterism stareffect in a ruby !see 'Characteristics· on previous page>. âą âą TWo professionally...gemstones when they are viewed in a particular light. see the photograph on page 2 of Gemstones: Ruby. stones...light of their own . This is called fluorescence. (See also Phosphorescence. l Fracture - All minerals fracture...Basalt is an example of an extrusive igneous rock. !See also Metamorphic Rocks and Sedimentary Rocks.l Impurity | | | Book | | own tumbling and grinding machine to cutting an emerald! The extensive reference section describes over...Uranium Xenon i oat jum 22.98 Tb Ti Vanadium 11 See Titanium Tungsten 150.35 407.87 hase Te 52 ...pond or fresh from a refrigerator. The best way to see it is to catch a snowflake (also made of ice). You...must return to the subject of chemical formulae to see how these cope with solid solutions. The method is...This means that, when you contemplate a mighty mountain range, you are essen- tially looking at a vast |  | | Book (volume) | | the field of semiconductor microelectronics, etc. (see Barnes and Orville-Thomas 1977). However, IR spectroscopy...group uramarsite discovered in the Bota-Burum U deposit, Southern Kazakhstan, was detected by characteristic...500 and 2,800â3,200 cm1 (Sidorenko et al. 2007, see Fig. 1.4). Earlier this mineral was considered as...independent on the Ti:Nb ratio. Indeed, as one can see from Fig. 1.8, the position of the Ti(Nb)âO-stretching...case of the presence of protonated SiO4 tetrahedra (see below), but for neutral silicates there is a distinct |  | | Book (edition) | | materials described. I, as editor and major contributor, am ultimately responsible for those omissions and inaccuracies...This book is not intended to be a bench manual; see references in many places below to The Identification...what I am about to recommend, monographs by their nature cannot be so up-to-date; the ones I am using...authorities and cited full details in the text; I am grateful to my very large personal library for virtually...didactic and flowery style to suit modern standards. I am strengthened in this decision by the welcome appearance |  | | Journal (issue) | | Publicity Chairman, P. 0 . Box N81, China T.ake. Calif. (See pages 255 and 307) BIG POW-WOW IN WASHINGTON July...PublicityOiairman 817 Mulford St., Evanston. Ill. (See pages 270, 303 and 335) Sept. 2-3, 1950 State Armory...function as that produced by a slowly cooling magma. See further remarks regardinR this phase under the crystallization...columbite, tantalite, aeschynite, microlite, gadolinite and others. Mineralization of pegmatites is not...by fo llowing their exact crystal form and habit. See the crystal of quartz in S9'1 iOO. ~ I.I itc!J |
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