 | | Book | | in Adamello Massif, Central Southern Alps, Italy: An Investigation of Its Mineralogy, Crystallography...and Allan Pring A Review of the ClassiïŹcation of Opal with Reference to Recent New Localities Reprinted...collaborative research projects worldwide. Ian Graham is also an Associate Editor of Mineralogical Magazine and the... is positioned between academia and industry. As an applied science, in gemology, the instruments used...Adamello massif, Italy. Tourmaline is considered as an important recorder of its geological formation [9 |  | | Journal (issue) | | spinels (40.71 ct total weight) that are set in 18 ct gold with old-cut cushion diamonds (1.30 ct total weight)...Zimbabwe | Chromiumbearing Translucent Green Common Opal | Blue Sapphires Reportedly from Azad Kashmir |...Silica Glass Sold as RockCrystal Balls | An Unusual Pink Synthetic Opal | Quench-Fractured Bicoloured Synthetic...courtesy of The Walters Art Museum 119 172 Hyalite Opal from Erongo, Namibia, Showing Green Daylight Fluorescence...worldwide. Video highlights of the conference, including an overview and all four panel sessions, are now available |  | | Journal (issue) | | oysters from fertilized eggs has generally replaced wild oyster collection. In hatcheries larvae and spat...presence or absence of a bead. Figure 2 provides an overview, illustrating sectioned cultured pearls...Figure 1: The pearl farm in North Bali, an aquacultural business with an ultra-modern approach to oyster production...host animals for the cultured pearls. Both halves of an oysterâs shell have a layer of soft skin. This tissue...purpose of growing a cultured pearl. The body of an oyster selected as a host animal has two sites where |  | | Journal (article/letter/editorial) | | concentrations of undesirable elements, open space, an environment conducive to forming crystals of sufficient...When a common mineral has certain features, such as an attractive color, a relatively large size, and a...gemstone (e.g. ruby, sapphire) unless it formed in an environment that allowed it to attain a suitable...geologic environment (such elements can either impart an âoffâ color or 1 Department of Earth and Ocean Sciences...which is rare in most geologic environments; (5) an environment to form crystals of sufficient size and |  | | Report (chapter) | | Abstract: Opening-mode fractures in clinker and opal-CT chert spheroids form by growth and coalescence...formation in chert spheroids is associated with the opal-CT to quartz transition in the same host material...and associated alteration haloes are exposed in a quarry (Cisowski & Fuller 1987; Lore et al. 2002). Clinker...mudstone is composed of biogenic opal-A and smectite, with minor opal-CT, kaolinite, illite, quartz and...increasing alteration, tests of diatoms composed of opal-A are dissolved, and cristobalite, illite and haematite |  | | Book (chapter) | | 279 (1993). hĂŠmatoconite = calcite + hematite (marble), Dana 6th, 267 (1892). haematogelite = colloidal...361 (1913). Haematokonit = calcite + hematite (marble), Haditsch & Maus 75 (1974). HĂŠmatolith = hematolite...= caledonite, Dana 7th II, 630 (1951). Halb-Opal = opal-CT, Dana 6th, 195 (1892). Halbvitriolblei = lanarkite...quartz-mogĂĄnite mixed-layer, Thrush 522 (1968). half opal = opal-CT, Schumann 152 (1997). halite-Ă = halite, Dana...Dana 7th III, 247 (1962). Hallein = halite, Van Der Meersche et al. 12 (2010). hallĂ©rite = Na-Li-rich |  | | Journal (issue) | | room temperature with the green line (514.5 nm) of an Ar-ion laser as excitation. In order to obtain comparable...Raman shift (cm-' ) Fioure 10 : Raman snecirum of an oran{Te freshwater cultured nearl turned black bu...at 1571,1594 and 2918 cm 4 . The Raman spectrum of an irradiated dark-coloured cultured pearl will only... A tourmaline-quartz combination from Brazil has an iridescent chatoyancy Grey orthoclase moonstone from...Sunstone from Russia has a strong cat's-eye caused by an albite-oligoclase orthoclase perthite. Four-rayed |  | | Book (chapter) | | (1983). Lake Superior fire agate = glass (imitation opal), LĂĄszlĂł 1 (1995). Lake Superior greenstone = pumpellyite-(Mg)...quartz + pyrolusite, Egleston 283 (1892). landscape-marble = fine-grained banded calcite + pyrolusite + clay...+ tourmaline, Bukanov 84 (2006). landscape ruin marble = fine-grained banded calcite + pyrolusite + clay...Langizit = langisite, Zirlin 73 (1981). lĂĄngopĂĄl = red opal-A, LĂĄszlĂł 204 (1995). lĂĄngspinell = orange-red spinel...langstaffite = chondrodite, Chester 150 (1896). Languedoc marble = compact calcite, Egleston 64 (1892). lannaeite |  | | Book (chapter) | | 21, 570 (1928). machiavecchia = compact calcite (marble), O'Donoghue 367 (2006). MacIntoshit = U-(OH)-rich...chrysotile, Novitzky 274 (1951). madera petrifica = opal-CT, de Fourestier 203 (1999). madhyamarastraka = diamond...= compact calcite (shells, marble), Egleston 64 (1892). madreporic marble = compact calcite (shells)...calcite (shells, marble), Egleston 196 (1892). Madreporstein = compact calcite (shells, marble), Egleston 64...synthetic rutile, Bukanov 212 (2006). magic stone = opal-A or staurolite or obsidian, Bukanov 151, 217, 308 |  | | Journal (article/letter/editorial) | | 1016/j.oregeorev.2019.103304 This is a PDF file of an article that has undergone enhancements after acceptance...grade and several phyllosilicates can be used as an ore guide to non-clay mineral deposits. Time, climate...the geological age of formation is synonymous with an increase of the P-T regime where important boundaries...Central Europe. They indicate an ensialic geodynamic regime in Mesoeurope and an ensimatic regime in Neoeurope...extensional regimes in the Alpides and indicative of an ensialic and ensimatic regime, respectively. In the |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | role in naming the plants and animals, also showed an interest in classifying the minerals. His natural...synonymy was improved and extended. The work became an international classic for over 50 years, due to the...Josef Zemann: Institut fur Mineralogie der Universitat Wien, Austria. Michael Zolensky: Lyndon Johnson Space...XV xvi Introduction international members and an affirmative response of at least two-thirds of those...Once accepted, the information must be published in an appropriate journal within two years or the CNMMN |  | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...on the mineralogy and chemistry and ends up with an outlook into its ïŹnal use and the supply situation...common plate tectonic settings is supplemented by an approach taken for the ïŹrst time for such a number...in mineral exploration. This review is designed as an âinteractive paperâ open, for amendments in the electronic...considered as an area of scientiïŹc research of black and white smokers, rather than an area of exploration | | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...on the mineralogy and chemistry and ends up with an outlook into its ïŹnal use and the supply situation...common plate tectonic settings is supplemented by an approach taken for the ïŹrst time for such a number...in mineral exploration. This review is designed as an âinteractive paperâ open, for amendments in the electronic...considered as an area of scientiïŹc research of black and white smokers, rather than an area of exploration |  | | Book (chapter) | | calcite ?, de Fourestier 127 (1999). Galatom = opal-CT, Thrush 475 (1968). galaxite (Canada) = Ca-rich...Ca-rich albite, Bukanov 281 (2006). Galaxy = 3,749 ct. opal-A, MR 37, 2 (2006). Galchait = galkhaite, Chudoba...Robertson 18 (1954). geiserita = opal-CT, Zirlin 59 (1981). Geisirit = opal-CT, Doelter II.1, 246 (1913). Geisterquarz...quartz + inclusions, LĂĄszlĂł 153 (1995). gejzirit = opal-CT, LĂĄszlĂł 87 (1995). Geko = Na-exchanged Ca-rich...metamict zircon, LĂĄszlĂł 87 (1995). gel-cristobalite = opal-C, AM 47, 809 (1962). Geldiadochit = colloidal diadochite |  | | Journal (issue) | | moissanite 386 Gem Notes Large kunzite from Brazil| Marble-hosted ruby mine, Mogok, Myanmar|Secondary gem...gem deposit in Mogok, Myanmar|Pink play-of-colour opal from Idaho|Dumortierite inclusions in quartz from...inclusion|Zawadi sapphires|Tourmaline from the Havey quarry, Maine, USA| Greenland tugtupite|Orange zircon...Cover Photo: The attractive appearance of this 54.10 ct Zawadi sapphire is created by its âgoldenâ sheen...International Jewellery Show in March 2015. The instrument is an enhanced and more convenient handheld version of |  | | Report (edition) | | second edition of Gemstones of Western Australia is an updated version published in response to public demand...expanded to include additional occurrences of emerald, opal, agate, chalcedony, organic gems, tiger eye jasper............................. 107 Chapter 10 Opal 109 Opal properties.............................................................................. 109 Opal terminology......................................................................... 110 Precious opal in Western Australia........................... |  | | Book | | to assist you in further research. Everyone with an interest in rocksâmineralogists, petrologists, general...and lapidariesâwill find the Dictionary of Rocks an indispensable and information-rich reference source...In addition to a concise definition for each term, an attempt also has been made to indicate the derivation...jasper, agate, and other forms of quartz, as well as opal. Non-English terms commonly used in English-language...modifying term and not under the terms rock or stone. An effort has been made to determine the position of |  | | Conference Proceedings | | high quality of life. This regional capital is also an important hub for the industry (e.g. agriculture...recent years. La CitĂ© Nantes Congress Center offers an ideal setting for the conference, with its high-quality...Dr E. GĂŒbelin proposed creation of a âCommittee of an International Gemmological Associationâ that would...Italy (1960), Helsinki, Finland (1962), Vienna, Austria (1964); Barcelona, Spain (1966); Stockholm, Sweden...over 40 countries or areas â including Australia, Austria, Bahrein, Belgium, Brazil, Canada, China, Czech |  | | Journal (article/letter/editorial) | | smectite/volkonskoite) are hosted in altered varicoloured marble, chalk marl/travertine, and/or saprolite/top soil...the secondary veins of the altered varicoloured marble. The Na-rich member (strelkinite) is dominant in...mineralisation in the veins of the altered varicoloured marble. Tyuyamuniteâstrelkinite phases are intermixed...smectite fills voids and cavities of the altered marble, chalk marl/travertine and recent saprolite/top...uranate phases (restricted to the varicoloured marble) were also identified â the calculated structural |  | | Journal (issue) | | Bibliography Lists Updated | New Journal: GemmaeâAn International Journal on Glyptic Studies | Maine... Afghanistan | Olshanskyite from Japan | Yellow Opal from Tanzania | Titanite (Sphene) Inclusions in...extant examples of Late Middle Ages royal regalia. An article on pp. 26â64 of this issue describes its...Google Play, but the lightbox can also be used with an iPhone. Available accessories include turntable and...zirconia. It accommodates samples weighing 0.002+ ct, in the colour range DâK. It has a built-in smartphone |  | | Journal (issue) | | in the papers. ISSN 1220-5648 Adolf Heinrich HORN, Hernando BAGGIO, Rafaelle SCHIMITH Selected element.............................. 39 Adolf Heinrich HORN, Igo Fernando LEPSCH, Regynaldo Arruda SAMPAIO,...âŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠâŠ.âŠ. 43 Hernando BAGGIO, Heinrich HORN, Thiago MARTINS, Matheus SIMĂES Rainfalls and natural...55 MĂĄrcia AndrĂ©ia da SILVA NUNES, Adolf Heinrich HORN, William Fortes RODRIGUĂS, Essaid BILAL Environmental...Adolf Heinrich HORN The use of dimension stone cut residual in agriculture soil correction. An example from |  | | Report (edition) | | fancy yellow, rough, sawable diamonds (average 2 ct) from Ellendale diamond mine (courtesy Kimberley.............................................. 32 Marble Bar region ................................................................ 108 Chapter 13 Opal 109 Opal â gemstone properties .................................................................. 109 Opal terminology ........................................................................ 110 Precious opal in Western Australia .......................... |  | | Book (chapter) | | XXXVI (1893). obsidienne du Cantal = orthoclase or opal-CT, Egleston 183 (1892). obsidienne perlĂ©e = glass...280 (1892). occhio di Pavone = compact calcite (marble), de Fourestier 249 (1999). occhio di Pernice =...quartz, de Fourestier 250 (1999). oculus mundi = opal-A, Egleston 238 (1892). oculus piscis = apophyllite...riebeckite, Lacroix 122 (1931). oeil du monde = opal-CT, de Fourestier 251 (1999). oeklonskowiet = uklonskovite...ofit = serpentine, LĂĄszlĂł 201 (1995). oftalmita = opal or banded quartz-mogĂĄnite mixed-layer, de Fourestier |  | | Book (chapter) | | EIV, 7 (1974). bamboo opal = opal-CT, Bukanov 152 (2006). bamboo-pearl = opal-CT, O'Donoghue 822 (2006)...(1954). bardiglio = granular calcite + serpentine (marble), Dana 6th, 267 (1892). bardiglione = anhydrite...I.3, 3766 (1929). bardiole = granular calcite (marble), Egleston 65 (1892). bardolite = hydrobiotite...anhydrokainite, Dana 7th II, 596 (1951). Basalt-Opal = opal-A, LAP 27(4), 35 (2002). Basaltspeckstein = serpentine...biotite-vermiculite mixed-layer or hydrobiotite, Van Der Meersche et al. 25 (2010). bastonite = biotite-vermiculite |  | | Journal (issue) | | N80, N80, N80, N80, N80, N80, J Lechleitner/Austria HyS EM Flanigen/Quintessa/Linde/USA Adachi Shin/Japan...White/England CC Chatham/USA CC Chatham/USA J Lechleitner/Austria FIV FIS FIS VaR FIS FIS FIS N80, 39 N80, 78;...followed by irradiation SkS with yttrium oxide content lower than usual Vapour phase reaction, atmospheric or...century, Marcasite has been used in jewellery as an inexpensive alternative for the sparkle of diamonds...century, growing scientific interest resulted in an increasing challenge for anyone looking into the |
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Marble quarry, Atzelsdorf, Brunn an der Wild, Horn District, Lower Austria, Austria