 | | Journal (issue) | | Tutors: Michael O'Donoghue, Peter Read Details: R. Huddlestone, 071-404 5004 NELSON GEMMOLOGICAL INSTRUMENTS...NE of the Sandawana mine, along the Mweza Range, which is named 'Machingwe' mine, after a nearby stream...The Machingwe Emerald mine The car journey from Masvingo to the Mashingwe mine takes about 3l/z hours...for the mine became 'Machingwe Syndicate No. No.22 Mine', but is better known under the name Mine: Machingwe...Machingwe mine. At the time of the first author's visit to the mine -S striking, the No. No.11 shaft shaft |  | | Journal (issue) | | and describes the wide range of methods used to mine th e corundum . Gemologically, the Th ai rubies...and Rubies of Siam, Ltd., obtained the rights to mine in what was then Siam. This company was an extension...limited to Thai nationals. Today, about 2,000 people mine in the Khao Ploi Waen-Bang Kha Cha area, and at...: .. . 6?' ,...-/- International boundary Road Mine River Figure 2. Geologi sketchmap of th Chanthaburi-Trat...Chanthaburi-Trat area. MINING METHODS The methods used to mine ruby and sapphire in the Chanthaburi area reflect |  | Valentini, L., Marchesini, B., Parisatto, M., Perugini, D., Artioli, G. (2015) Non-invasive assessment of the formation of tourmaline nodules by X-ray microtomography and computer modeling. American Mineralogist, 100 (2) 459-465 doi:10.2138/am-2015-4987 | Journal (article/letter/editorial) | | of porphyroblasts (Carlson and Denison 1992; Huddlestone-Holmes and Ketcham 2005, 2010) and 3D spatial...composition). Dark blue tourmaline nodâ ules having a schorl-elbaite solid solution composition (Dini et al...Petrology. Cambridge University Press, U.K. Huddlestone-Holmes, C.R., and Ketcham, R.A. (2005) Getting |  | | Journal (issue) | | Cambridge, Massachusetts, USA; Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Maggie Campbell Pedersen...Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France;...E. Post, Smithsonian Institution, Washington DC, USA; Andrew H. Rankin, Kingston University, Surrey; Benjamin...Rossman, California Institute of Technology, Pasadena, USA; Karl Schmetzer, Petershausen, Germany; Dietmar Schwarz...Group Laboratories LLC, Jefferson City, Missouri, USA; J.C. (Hanco) Zwaan, National Museum of Natural History |  | | Journal (issue) | | had purchased it personally in the rough at the mine in Brazil and had also cut it himself (which, however...Stewart Street, Santa Monica, California 90404, USA **GIA Gem Trade Laboratory Inc., Santa Monica, Los...Saliniha Brazil Brazil Nigeria South Africa, Cobra-Mine Mozambique, Morrua Zambia USSR, Urals Afghanistan... IZI I.ISO 1. 'lOO âą âą 05Q âą âą 05Q 0. 100 usa L j ell » i o » ' 1m! IIlI l III In ' ...f>"'" » » » | ' . 9SO ,." po<>< » uoo ~~ âą usa ~ âą i > 0 .050 i « » ⹠« i 0. 100 40 points |  | | Journal (issue) | | and 7.9.3 member compositions). Thailand (Rubywell Mine) alluvial sapphirines (T) and NSW granulite-hosted...appear appear in sapphires from Yogo Gulch (Montana, USA) and in corundums corundums from metamorphic metamorphic...T. Cold Coldham, Sapphex Boulder, Co., Co., VSA USA analytical ham, Sapphex A.J., 1986. 1986. Polybaric...lava flow, Nye County, Nevada, USA John R. FĂŒhrbach, B.Sc., FGA, GG Amarillo, Texas, USA ABSTRACT: An extinct...occurs near Black Rock Summit in east central Nevada, USA. The peridot was studied to determine chemical, optical |  | | Journal (issue) | | American Museum of Natural History (AMNH), New York, USA. The suite comprises part of the Heber R. Bishop...(Table I). The colourless material produced in the USA for jewellery purposes and released to the trade...which is consistent with the samples grown in the USA as described by Nassau et al. (1997). With the naked...ultraviolet light. The material grown by Cree Inc. in the USA currently on the market is cut in a direction with...Hanni, SSEF. elsewhere for moissanites grown in the USA (Nassau et ah, 1997; Chalain and Krzemnicki, 1999; |  | | Book | | Fraquet Corundum Richard W. Hughes Diamond Roy V. Huddlestone Jet H. Muller Opals P. J. Darragh Topaz D. B...Scotland 59 France 62 6 Occurrence: The Americas 63 USA 64 Mexico 72 Panama 75 Brazil 75 Canada 80 7 Occurrence:...given to a well-crystallized variety from Herkimer County, New York, and 'Marmaros diamond' comes from Hungary...attractive twins were found in Brazil at the Piraja mine, Brumado district of Bahia state (the twins are...Japan itself the best twins are found at the Otome mine, Kurobera, Yamanashi Prefecture. The twins occur |  | | Book | | New Fetter Lane, London EC4P 4EE Published in the USA by Chapman and Hall 29 West 35th Street, New York...stone came from â someÂŹ times down to the actual mine. Today it is commonplace to see in sale catalogues...such as oil (e.g. in some fluorite from Illinois, USA). Among the large number of gases are methane, ethane...in minute triclinic crystals at Lynch, Virginia, USA (but masses are far more common). âą Quartz: rose...Analyser made by LCE Ltd of Worthington, Minnesota, USA, computes the âtotal optical activityâ (TOA) of the |  | | Journal (issue) | | is near Franklin and Ogdensburg, Sussex County, New Jersey, USA. The district is famous for its wide range...cm in length, are known only from Buckwheat mine, on Mine Hill close to Franklin. Only a few natural gem-quality...minerals of Franklin and Sterling Hill, Sussex County, New Jersey. U.S. Geological Survey Professional...of a disused quarry at Frenchvale, Cape Breton county. The village of Frenchvale is located about 18...calcite, talc, serpentine, scheelite and tourmaline (schorl) are common in the vicinity of shear zones which |  | | Journal (issue) | | enjoy pearls. GemStone Press, Woodstock, Vermont, USA Schoeffel, H., 1996. Perlen, von den Mythen zu den...1996) and in a fire opal from Opal Butte, Oregon, USA (Holzhey, 1997). In the Indonesian opal, these tubes...Holzhey, G., 1997. Feueropal von Opal Butte, Oregon, USA. Z. Dt. Gemmol. Ges., 46 (3), 161-8 Johnson, M.L...is also common for iron-bearing members of the schorl-dravite series (Grice and Ercit, 1993). The boron...permission of Litographie, LLC, East Hampton, CT, USA. To understand the different schemes of isomorphic |  | | Book (edition) | | Corporate Drive, Suite 400, Burlington MA 01803, USA First published 1962 Second edition 1970 Third edition...Canada, Germany, Thailand, Vietnam, the UK and the USA, making this a truly international collaboration...First Edition For two decades, an earlier work of mine â Practical Gemmology â has proved a useful elementary...wood have been replaced by precious opal; in the USA, the woody cell structures of quite large trees have...and in the extensive deposits in the south-western USA, copper sulphides in trachytes (alkaline volcanic |  | | Journal (issue) | | Miku Mine was such a dark red that it required strong sunlight to distinguish it from the schorl which...ago did show indication of gem material. The Aries mine in particular produced a quantity of light aquamarine...am grateful to Mr Basil Anderson and Mr Roy Huddlestone for the loan of coloured diamonds and to Mr Khalid...Fairfax, U.S.A. Miller, Victoria J., Toronto, Canada. Mine, Kayoko, Kita Kyushu, Japan. Miralies Morey, JosĂ©...Summersgill, Susan M., Warrington. Susinno, Marie H., Rockville, U.S.A. Suzuki, Yuko, Tokyo, Japan. Takakura, |  | | Book (edition) | | sidewall in the open-cast workings of the Premier mine near Pretoria in South Africa. In the same year...his own gemmological correspondence course in the USA, founded the Gemological Institute of America. In...breakthrough after the General Electric group in the USA announced its own successful synthesis of diamond...illumination. In the same year, Caroll Chatham in the USA began marketing synthetic rubies produced by a type...'Centenary' diamond recovered in 1986 from the Premier mine in South Africa. (Courtesy of De Beers) in Hatton |  | | Book (edition) | | sidewall in the opencast workings of the Premier mine near Pretoria in South Africa. In the same year...his own gemmological correspondence course in the USA, founded the Gemological Institute of America. In...breakthrough after the General Electric group in the USA announced its own successful synthesis of diamond...illumination. In the same year, Caroll Chatham in the USA began marketing synthetic rubies produced by a type...(in 1986) of a 599 carat diamond from the Premier mine (Figure 1.7). The same year saw the introduction |  | | Book (edition) | | to the several classes of the Ro1·AL Sc1rooL OP MINE ar~ deli,ered; lJtlt 11 smaller room 0 11 tl1e 11p11cr... l 65. Large ma_s of n.a.Live CO}lpcr; from the mine at the Gho~tcroft, M11llion, Cornwall (p. 3 J. Presented...01·thoclrL2:e-fclspar a "'sociatcd ,,.. itl1 muoh schorl, 01· blnck tou1·mnline., and a small c111nntity... Oadeby, and Park Nook, neai· Doncaster, of Huddlestone near Sherburne, and of Smawse near Tadcaster...brittle glass, similar to obsidian. f ro11i tlie Mine at tlie Gliostcroft, lllullion, Oo1rnwall. No. 165 |  | | Book (volume) | | OnifgBid itm'4\| ^ N « C Ul tXkmA drivlaii) |P USA OTHS* 4dvi»g K.: SiikT irm O4s»**o« hmily 0«!MU...Miller Farm (Md.) UF Miller Farm (Md.) BT FarmsâMaryland D region [QC881.2.D2] UF D layer BT Lower ionosphere...Creek (Washington County, Or.) BT RiversâOregon Dairy Creek Watershed (Washington County, Or.) BT WatershedsâOregon...famUy (Not Subd Geog) RT Dam famUy Dam Lake (Oneida County, Wis.) BT LakesâWisconsin ReservoirsâWisconsin...ui Dam (Korea) â Mali NT ManantaU Dam (Mali) â Maryland NT Conowingo Dam (Md.) â Massachusetts NT Charles |  | | Book (volume) | | of Altadena and John G Streeter of San Diego County in ac- the collection to books gemolo- the...commission, cond communication al explan f, county company, CO doth -mg leaf, contrib contribution...headpc headpiece mbr member HI Hawaii MD Maryland hist history, historical, ME Maine HM His... A work that index. disciplines selves John Mine," responsible these A Canad 6 x of the bibliography...loaned from the governments, eg, as from the USA. In addition gallery tip-ins as six centuries |  | | Book | | Characteristics of minerals. Meaning of structure in mine- ralogy. 245. Number of original forms limited...massive minerals. 304. State of aggregation of mine- rals. 305. 306. 307. 308. 309. 310. 311. 312...1094. Necessity of boring before opening a coal mine. 1095. Operation of boring. 1096. Shaft sinking...ventilation. 1114. Quantity of air passed into a mine. 1115. Distribution of the air in the workings....variety of mineral veins. 1 1 59. The eyes of a mine. 1160. Timbering. 1161. Ventilation. 1162. 1163 |  | | Book (volume) | | city, including several villages, of Middlesex county, Massachusetts, U.S.A., on the Mystic river and...(Medford, 1905); S. A. Drake, History of Middlesex County (2 vols., Boston, 1880) and Helen Tilden Wild,...Pennsylvania; Womenâs Medical College, Baltimore, Maryland; New York Medical College and Hospital for Womenâthe...collection of facts renders his works a precious mine of information. Indeed towards the close of the...humanityâthe SalpetriereâdisÂŹ covered an unworked mine of chronic nervous disease. M. H. Romberg (1795-1873) |  | | Book (volume) | | tion of Literature. Holland: Holland: History. County and Province of. George Herbert Carpenter, B...H.S. Lecturer on Horticulture to the Middlesex County Council. Guide to Garden Plants; French Market...Newton Dennison Mereness, A.M., Ph.D. Author of Maryland as a Proprietary Province. O. Ba. Oswald Barron...Professions; &c. | Henley, W. E. High Bailiff of County Courts, W. R. Ni. Sir William Robertson Nicoll...Worthington Williams, F.L.S. Superintendent of London County Council Botany Centre. Assistant Lecturer in Botany |
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