 | | Journal (issue) | | Gem & Mineral Show - Spring May 10 - 11 - 12, 2019 NEW LOCATION! HILTON COSTA MESA 3050 Bristol St. Costa...and more! Neptunite Benitoite Gem Mine San Benito County,CA Martin Zinn Collection Photo by Jeff Scovil...water that is never pure. is Adamite from Mapimi, Mexico. This species is Water, especially the super-hot...activators. Among the zinc deposits in New Jersey. Franklin, New Jersey is, in most prevalent are the uranyl...often referred to as Terlingua type, came from Mexico. What is so unusual about this calcite and distinguishes |  | | Journal (issue) | | deposits from the Barrington basalt province in New South Wales, one typical of East Australian sapphire...Figure 1: Distribution province, 250 of of Sydney, New South Wales. Corundum/zircon suites suites are marked...by inclined province, 250kmkmnorth north Sydney, New South Wales. Corundum/zircon are marked by inclin...from central Queensland (Anakie Fields) and New South Wales (New England Fields) and from East Pailin. Pallin...shield volcano in eroded New South South Wales within within the Cainozoic New Figure 3: Working eluvial/alluvial |  | | Journal (issue) | | and Edward W. Boehm Kilbourne Hole Peridot John K. Fuhrbach 1V. R. 16 NOTES AND NEW TECHNIQUES 28 Opal...Opal from Querktaro, Mexico: Fluid Inclusion Study 35 43 Ronald J. Spencer, Alfred A. Levinson, and Iohn...dislinctive orange to red ''fie" opols ot Queretoro, Mexico, is believed to be unique. To help solve the lnyslery...opal. The buckle is courtesy of R. Esmerian, Inc., New York. The 80.12-ct rough opol ond the 16.27-ct cabochon...place goes to an article that explained important new theories on diamond formation: "Age, Origin, and |  | | Journal (issue) | | Mines Bureau Reference “Libraries” SOUTH-CENTRAL NEW MEXICO’S SINK-HOLES AND CRATERS Alfred M. Perkins...TERRESTRIAL MAGNETISM AT THE CARNEGIE INSTITUTION NEW BOOKS Meetings and 1 2 3 11 12 13 15 16 18...Annual Meeting. Dec. 29-30, 1949. Hotel Statler, New York. Earth Science Institute, Annual Meeting. March...approximately thirty-five miles southwest of Las Cruces, New Mexico, is an extensive area of sink-holes, fissures...interesting mode of their formation. The largest hole is Phillips Hole, which is some three miles in length and |  | | Report (issue) | | assemblages in a suite of xenoliths from Kilbourne Hole, New Mexico . 25 Edward L. Dromgoole and Jill D...related rocks from Westland and Otago, South Island, New Zealand . Barbara A. Barreiro and Alan F. Cooper...A note on newly discovered kimberlites in Riley County, Kansas William L. Mansker, Bill D. Richards, and...petrography of the Twin Knobs ttl lamproite, Pike County, Arkansas . 205 Michael A. Waldman, Tom E. McCandless...Potash Sulfur Springs igneous complex, Garland County, Arkansas Robert E. Zartman and J. Michael Howard |  | | Journal (article/letter/editorial) | | seems to work in most of the pictures, providing a new format for mineral photography. These two photo portfolios...Texas, although one locality, Kilbourne hole, west of El Paso, is in New Mexico. The book is primarily meant... Polished Garnet and Opal Cabochons, Faceted Gemstones and much more. Geodes, Dark Amethyst sections |  | | Book (volume) | | N_E. Bivd. Gkapats GEMSTONES of NORTH AMERICA ~ NASMI EPPA GEMSTONES OF THE WORLD SERIES +...Cultural Art Santa Ana, California + GEMSTONES OF EAST AFRICA by Peter C. Keller + GEMSTONES OF AFGHANISTAN...Gary W. Bowersox and Bonita E. Chamberlin + GEMSTONES OF NORTH AMERICA, by John Sinkankas ON@“THE...GROUP. Green fluorite (121.39 ct), Westmoreland, New Hampshire; blue fluorite (132.12 ct), Illinois; square...Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal step cut violetish pink |  | | Journal (issue) | | content' pp.451-60. Photo courtesy of Graff, 6-7 New Bond Street, London Wl. ISSN: 0022-1252 © Copyright...Research, Santa Monica, CA, USA †GIAGem Trade Laboratory, New York, NY, USA Introduction In recent years...inclusions. We also report the discovery of several new hydrogen-related absorptions in the infrared and...H-rich diamonds. Stones courtesy Malhotra Inc., New York. Photo by R. Weldon studied (over one hundred)...believed to be, respectively, an overtone (2 hros), a new combination (hros + 2h rob) and another overtone |  | | Journal (issue) | | MATERIAL wonderful practice material for .de• wlopine new cuts t,ecause of Its exceptional low price. OUTSTANDING...$29.50 ONLY $34.50 ONLY $39.95 ONLY $45.75 IUND NEW! SIMULATED EMERALDS '-/ EIEMID . FICOIII . . Y975-5...... . ....... 16 AFMS Members Visit Museums in Mexico by George Strauch ......... . .... 26 A Field Trip... . . . . . . . . . . . . . . . . . . . 5 What's New. . . . . . . . . . . . . . . . . . . . . . . . .......... . .. ..................... .. ....... 20 New Books . . . . . . . . . . . . . . . . . . . . . |  | | Book (edition) | | GEMSTONES $CS of NORTH AMERICA . In Two Volumes $30.00 GEMSTONES OF NORTH AMERICA In Two Volumes ...of Volume I of this work in 1959, the amount of new information that has accumulated is so large and...deposits been profitably reopened, but extensive new primary sources ha\"e been discovered all over the...and quality have been found, as well as entirely new species. Recent mineralogical analyses have yielded...NOSTRAND REINHOLD BOOK / '- ✓ ( ..., ■ GEMSTONES OF NORTH AMERICA In Two Volumes Volume II T | | | Book (volume) | | Cultural Art Santa Ana, California GEMSTONES OF EAST AFRICA by Peter C. Keller GEMSTONES OF AFGHANISTAN...by Gary W Bowersox and Bonita E. Chamberlin GEMSTONES OF NORTH AMERICA, VOLUME III by Joh11 Sinkankas...GROUP. Green fluorite (121.39 et), Westmoreland, New Hampshire; blue fluorite (132.12 et), Illinois; sqmu·e...Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...to the study and description o/ North American gemstones. FOREWORD ew mineralogists of this century |  | | Journal (issue) | | Mineral Occurrence At the Sweet Home Mine, Park County, Colorado Martin Jensen Collectors Edge Minerals...autumn, it wasn't necessarily the fact that a few new specimens were to be seen in the lab, but rather...knew mining plans had included the development ofa new raise along the central portion of the formerly producti...the time had been laboring very hard driving this new raise, hoisting the heavy drills. hydraulic splitter...and get a look at this new raise which supposedly was the source of the odd new specimens. The team of |  | | Journal (article/letter/editorial) | | University, 1 Brookings Drive, St. Louis, MO 63130-4899, USA *Corresponding author, e-mail: hofmeist@levee.wustl...data on D(T) orthopyroxenes, focusing on large gemstones which could be oriented, lack trace alteration...of heat flow along [001] only for three large gemstones. For many samples, data collection was limited...observed for colourless (En 96) and green (En90) gemstones, and whitish (protoenstatite, En99, En85) fragments...fragments, than for yellow (En98) and orange (En89) gemstones, green (En92) and dark cleavage fragments (En75 |  | | Journal (issue) | | about diamonds, Every day, there are new millionaires and new businesses. Asians are very investment-conscious... Fall 2011 Volume 47, No. 3 ® EDITORIAL 181 New Beginnings Jan Iverson FEATURE ARTICLES 182 Carat...suitable for cabochons, including star ruby. NOTES & NEW TECHNIQUES pg.182 196 Infrared Spectroscopy of...Myanmar • Nuummite from Mauritania • Blue opal from Mexico • Freshwater cultured pearl beads • Quartz with...Krzemnicki Basel, Switzerland Christopher P. Smith New York, New York James E. Butler Washington, DC E. Alan |  | | Journal (issue) | | Santa Monica, Monica, California, California, USA USA Gemological Abstract principal principal (e.g...(referred to as the Institution in Washington DC, USA (referred are extremely extremely rare in nature...to the Smithsonian Institution of Washington DC, USA in 1987 (Figure 1). Very little is known of of Instrumentation...Information Information Centre assisted 1925. McGraw Hill, New York, N NY., Y , 906 pp. Kunz, G.F., 1927. Precious...Department Department drew the spec1926. McGraw Hill, New York, NY., 878 pp. trum curves. Kunz, G.F., 1929 |  | | Journal (issue) | | System of Mineralogy, 7th edn, vol. 1, pp.675-9. New York: John Wiley & Son, 1944. 4. [Manuscript received...bought from me, when he first arrived here from New Zealand). Colourless benitoite is less commonly cut...small town in the Czechoslovakian Erz Gebirge gave a new name to the world. Our English 'quartz', Italian...and Hudson, London, 1964. G. F. Herbert Smith: Gemstones, 10th edn, Methuen, London, 1949 (quoting Tomkeieff:...and J. A. Bandy, Geological Society of America, New York, 1955. Encyclopaedia Britannica, 11th edn, vol |  | | Journal (issue) | | CARVING MICROMITE Diamond carving Points AND NOW ... NEW FROM LAPCRAFT For Dressing and Truing . . . • MICROMITE........................73 4 - APRIL 1976 What'• New ...................................................50 per lb. COCONUTS - Geodes and nodules from Mexico may be hollow and lined with quartz crystals or...this Is the best cutting material to come from Mexico In the last five years. Colors range from bright..................... $1.00 per lb. Calleo Agate, Mexico, "plumes", lavender, tan and cream colors .... |  | | Journal (issue) | | the papers published in this issue and there is new information on gems from Myanmar, Vietnam, Sri Lanka...of 'procedural' obstacles and the availability of new technologies. With such technologies it is possible...distinguishing them from untreated stones, using - yes new technology, are outlined by C.P. Smith. The third...Diffraction Data, 1601 Park Lane, Swarthmore, PA 19081, USA Kohn, J.A., Comeforo, J.E., 1955. Synthetic asbestos...state, north-east Burma) has provided an intriguing new source of gem-quality rubies for the jewellery, gemmological |  | | Journal (issue) | | produced by Regency Created Emeralds Co. in the USA. Since 1979 various synthetic beryls including green...varieties have been produced in Japan by Adachi New Industrial Ltd. of Osaka (Chikayama and Miyata, 1987;...reminiscent of the natural red beryls from Utah, USA (see Henn and Becker, 1995). The physico-chemical...Chikayama, A, and Miyata, T., 1987. Synthetic gemstones from Japan. Transactions of the XXI International...U., and Becker, G., 1995. Rote Berylle aus Utah, USA Neue Beobachtungen. Z. Dt. Gemmol. Ges., 44, 55--{i0 |  | | Book (volume) | | chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...gem qualityagatized and opalized wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford...woods, etc. DAWSON COUNTY GOTHENBURG, in sand pitspetrified palm wood. DEUEL COUNTY CHAPPELL, all regional |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (edition) | | O’Donoghue AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO •...Corporate Drive, Suite 400, Burlington MA 01803, USA First published 1962 Second edition 1970 Third edition...Marble Less Common Species Synthetic Gemstones Composite Gemstones Gemstone Simulants Plastics Pearls The...Biological Gem Materials The Fashioning of Gemstones Value-Enhanced Gemstones and Gem Materials 292 295 314 323...Identification Tables Appendices Appendix A Birthstones Gemstones for the Days of the Week Emblems of the Twelve |  | | Journal (issue) | | much better sounding names in use for certain gemstones. I am referring to misnomers and misleading names...should never be applied to tins noble category of gemstones. Umbcilite, which has been accepted in Europe...the same family should hardly justify an entirely new name. We felt that it was important for the sake...the labradorite designation, but not by creating a new name. If there is a need to have a separate name...logic behind it. Again, though, do we really need a new name for this material? Unlike many sciences, terminology |  | | Book (volume) | | GEMSTONES RIC NORTInHIwo AME A Volumes John Sinkankas _ GEMSTONES OF NORTH AMERICA In Two Volumes ... ® Volume I Gemstones, of all the mineral treasures to be found in North America, are perhaps the most...what circumstances it is found. All classes of gemstones are covered—commercial, rare, unusual, decorative...species. And for those interested in discovering new deposits, the geology and mineralogy of sources is...understanding of the circumstances under which gemstones are found. Jewelers and gemologists will find |
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