 | | Journal (issue) | | (Cambodia) Introduction Fast Australia and South East Asia exploit rich corundum deposits from • / their basalt...and Townsend, 1990; Sutherland, 1991), while SE Asia produces both sapphire and ruby in abundance (Vichit...ground) are are the jungle-clad Tadeth Tadeth Mountains Mountains Photograph by E.A. Jobbins. Jobbins. rocks)... 1995. mantle zircon megacrysts from South East Asia. RE. S. Folwell R.E. Pogson, G. Avern, B.J. B.J...Sydney corundums (rubies and sapphires) from Eastern Asia Geology, Publication 545, 545, 137-44 (Thailand |  | | Journal (issue) | | (10) 5.32 ct Paraíba tourmaline, (11) 2.16 ct demantoid, (12) 1.05 ct emerald, (13) 1.99 ct red beryl...colored stone–producing regions included: Southeast Asia (Myanmar, Thailand, and Vietnam), Africa (Tanzania...America (Brazil and Colombia), central and southern Asia (Sri Lanka, India, Afghanistan, Pakistan, Russia...gem-producing regions (southern Africa, South Asia, Southeast Asia, Australia, South America). Although there...at the historic emerald mines in Russia’s Ural Mountains (e.g., Schmetzer et al., 1991), but these mines |  | | Journal (issue) | | This large marble-hosted occurrence in the Pamir Mountains is a potentially productive source of corundum...star sapphire • Diamond slices • Large Namibian demantoid • Green nephrite jade from British Columbia •...sapphires of various colors produced recently in Asia or elsewhere but marketed as “Linde.” The “Linde”...the transparent synthetics produced recently in Asia but sold in the United States under the Linde trade...synthetic rubies and sapphires purchased recently in Asia, the stars were removed completely after one or |  | | Journal (issue) | | garnets such as spessartine (e.g., Laurs, 2002b), demantoid (Laurs 2002a; Eddins 2010), and tsavorite (Mayerson...representatives from major gem labs in Europe, the U.S., and Asia) issued a statement supporting the use of the term...alternative green stones such as tsavorite or demantoid garnets (figure 16). In 2008, a controversial...com/article.cfm/significance-of-horsetailinclusions-in-demantoid-garnet, Apr. 24. Emeralds from Swat Valley funding...(2002a) Gem News International: Update on Namibian demantoid garnet. G&G, Vol. 38, No. 2, p. 178. ——— (2002b) |  | | Journal (issue) | | north and on a clear day you can spy the jungle mountains of Myanmar (Burma). Both China and Vietnam lurk...Deposit near Ban Houei Xai, Bokeo Province, Lao. Asia Sapphires Limited, unpublished company report; 18...Koloskov, A.V. (2005) Cenozoic volcanism of Southeast Asia. Petrology, Vol. 13, No. 4, pp. 352–380. Hughes... Zambia and Madagascar in Africa or the Ural Mountains in Russia). However, the schists can vary considerably...– The Mountain Fire In the region of the Tajik Pamir mountain range, which locals call “the roof of the |  | | Journal (issue) | | Volume 38 / No. 4 / 2022 Demantoid from Iran Heat-Treated Pink-to-Red Spinel ‘Star of David’ Pattern...Basaltic Sapphire Heated with Pressure Cover photo: Demantoid has been mined from serpentinite-hosted deposits...Arizona, USA); photo by Brad Payne. ARTICLES Demantoid from Kerman Province, South-east Iran: A Mineralogical...328 THE JOURNAL OF GEMMOLOGY, 38(4), 202 2 Demantoid from Kerman Province, South-east Iran: A Mineralogical...Michael S. Krzemnicki and Ann Marie Hirt ABSTRACT: Demantoid from Kerman Province in south-east Iran was investigated |  | | Catalog/List | | 12.27mm $2,000 - 3,000 2123 GARNET VAR. DEMANTOID Ural Mountains, Russia From a sought-after source, this...BONHAMS 2125 2126 2125 ANDRADITE GARNET VAR. DEMANTOID Namibia This attractive cushion-shaped stone is...excellent face up spread the stone has fine luster. Demantoid garnets of over 1 carats are rare. Weighing approximately...15mm $8,000 - 10,000 2127 ANDRADITE GARNET VAR. DEMANTOID Namibia This attractive pear shaped garnet has...color which is characteristic for the region. Demantoid garnets of larger than 1 carats are considered |  | | Journal (issue) | | feature articles on Ceylon sapphires, tanzanite and demantoid, discussed various aspects of the use of gems...its lake (a former gem mine) and pagodacovered mountains. Photo V. Pardieu, 2004. (known in the gemological...on the famous Silk Road that linked Europe with Asia, these mines probably produced the Black Prince’s...British colonial appetites created the map of Central Asia with Afghanistan as a buffer state between Russia...spinel 6 19/08/2008, 21:04:39 GEMOLOGY Fine Pamir spinel (over 20 carats) from Tajikistan, with rough |  | | Journal (issue) | | Cover photo: Spinel from Kuh-i-Lal, in the Pamir Mountains of Tajikistan, has a long history and has been...IVY New York. ARTICLES 138 Spinel from the Pamir Mountains in Tajikistan By Dietmar Schwarz, Yicen Liu...others are in Italian. Topics covered include demantoid from Italy, diamond identification and analysis...most recent ones (posted in April–May) cover demantoid from Madagascar. Other topics are lab-grown diamond...and pink sapphires from other deposits in Central Asia. Gemological Institute of America, Bangkok, Thailand |  | | Journal (issue) | | and Biehler, R, 1991. Emeralds from the Ural mountains, USSR Gems & Gemology, 27(2), 86--99 Schmetzer...emeralds using Raman spectroscopy. Jewellery News Asia, September Hanni, H.A., Kiefert, L.Chalain, J-P...Sapphire, ruby Zircon (low) Spessartine garnet YAG Demantoid garnet Titanite (sphene) Zircon (high) Scheelite...and amethyst are found in the Reisseck group of mountains of the Hohe Tauern, Carinthia, Austria. Examples...Professor Peter R. Simpson gave a talk entitled Demantoid garnet and other new gems and minerals from Namibia |  | | Journal (volume) | | Africa: Paul Mason, ica.africa@g4si.com; and • Asia-Pacific: Julian Haskard, ica.asia@g4si.com. Fewer...the Ural Mountains, the range that traditionally marks the boundary between Europe and Asia. Alexandrite...His article “Rubies and Pink Sapphires from the Pamir Mountain Range in Tajikistan, Former USSR” was published...around 15 small houses surrounded by majestic mountains. InColor Spring 2007 27 Tajikistan 2 25/04/2007...a popular destination for mountain lovers. The Pamir range in southern Tajikistan is amongst the most |  | | Journal (issue) | | grades of facet and cabochon materials are cut in Asia. All overseas cutting is now calibrated in whole...p. 26. Thais cut more C Z (1990). Jewellery News Asia, No. 73, September, p. 90. Webster R. (1983) Gems...recently discovered deposit i n the South Ural Mountains of Russia. Photo 0 GIA and Tino Hammid- Dr. A..."Kootchins1zoye" ore mine comp]ex, located in the south Ural Mountains north of Magnitogorsk. Although rubies were first...the remainder of the stone. New production of demantoid garnets from Russia. Bill Larson, of Pala Properties |  | | Journal (issue) | | cliпobehoite (?) (33). 15. О Vishnevye Gory (Cherry Mountains). - Late hydrothermal veins in fenites: barylite...barylite [48). 16. О Ilmenskie Gory (llmeny Mountains). - Granite (iпcluding amazoпite) pegшatites: beryl...granite pegmatite body in the Turakuloma Ridge (East Pamir). HERDERITE. Traпslucent to transparent isometric...described in amazonite pegmatites of the Ilmenskie Mountains (the South Urals). In the same р\асе, but in the... 1. Menge observed the mineral in the Ilmeny Mountains (the South Urals).Тhey most likely took gadolinite |  | | Book | | pegmatites of Minas Gerais in Brazil, the Ural Mountains of the Soviet Union, the Malagasy Republic, and...5 en, (2 1/2 in.) long, from Takoiuaja, Ural Mountains, the Soviet Union. (Above) Heliodor crystal 10...and of finer quality than any seen in Europe and Asia before the Conquest. They totally supplanted the...is also found in the Soviet Union in the Ural Mountains, in Transbaikalia, and in Siberia. Other occurrences...was discovered in 1830 by a peasant in the Ural Mountains northwest of Ekaterinburg (Sverdlovsk). He took |  | | Journal (issue) | | Staebler and T. Wilson (eds), Pakistan: Minerals, Mountains and Majesty. Lapis International, English edition...specimen of clinohumite was said to be from the Pamir Mountains, Tajikistan. Clinohumite, a rare magnesium...to occur in two important localities — the Pamir Mountains (at Kukh-i-lal, Sumdzin and Changin), in Tajikistan...been recovered from the spinel mines in the Pamir Mountains and had been transported through Afghanistan...Gem News International. Clinohumite from the Pamir Mountains, Tajikistan. Gems & Gemology, 40(4), 337-8 |  | | Journal (issue) | | (Mashkovtsev and Zagorsky, 1997), and the Pamir Mountains in Tajikistan (Mashkovtsev and Zagorsky, 1997)...tourmaline: Japanese trader (2005) Jewellery News Asia, No. 245, pp. 66, 68. Supplier to vertically integrate...Zambian yellow tourmaline (2004) Jewellery News Asia, No. 236, pp. 128, 138, 140. Thomas A.E. (1982)...slower traffic but similar sales. Jewellery News Asia, No. 199, pp. 208–210. Zgambo N. (1995) The Lundazi...contributors (CLJ) of several dozen crystal specimens of demantoid (the green variety of andradite that is colored |  | | Journal (issue) | | d d w , yellow to brown mddite gamts* da few demantoid garnets, in addition to emeralds and green beryls...resembles this spectrum for typical yellowish green demantoid andradite garnet. Figure 0 GIA. Appearance with...to that of alkali basalts elsewhere in Southeast Asia and China, such as Mingxi in Fujian Province (Keller...Vietnam Sapphire The volcanic activity in Southeast Asia that brought the corundum-bearing allzali basalts...Cenozoic time (since about 37 My ago), Southeast Asia experienced block faulting as a result of regional |  | | Journal (issue) | | sapphire, Sri Lanka; (12) 5.79-ct pink spinel, Pamir Mountains, USSR; (13) 10.15-ct pink topciz, Pakistan;...alexandrites from Brazil, sapphires from Southeast Asia and Australia, emeralds from Colombia and Zambia...gem beryls. Commercial mining in the Wah Wah Mountains of Utah, begun in the late 1970s, continued sporadically...Ruby. The classic ruby occurrences of Southeast Asia (i.e., Mogolz, Burma [Myanmar]; Chanthaburi, Thailand;...may not always equal that of stones from Southeast Asia, it is regularly encountered in the trade. Cavey |  | | Book (edition) | | Garnets Andradite medium green olive green brown Demantoid Grossular medium green medium orange 0.47 0...colored beryl, in small crystals from the Wah Wah Mountains of Utah, has been named bixbite; this color is...red beryl in rhyolitic volcanic rocks in the mountains of Utah is unique. The chemistry and mineralogy... Eidsvoll, Norway: in granite. Red Wah Wah Mountains. Stone Sizes: Beryl crystals weighing many tons...cab of 1795 carats; Montana blue Sri "star of Asia"); star, Australia); 42.2 (purple, Sri Lanka); |  | | Journal (issue) | | Rough Cut Trade: Africa’s Coloured-Gemstone Flows to Asia | TRAFFIC Reports on Illicit Ivory Trade and Ivory...Rough Cut Trade: Africa’s ColouredGemstone Flows to Asia In July 2020, the Global Initiative Against Transnational...trade linking African suppliers with traders in Asia. The information is based on interviews with traders...the report at https://globalinitiative.net/ africa-asia-gemstones-trade. THE JOURNAL OF GEMMOLOGY, 37(3)...from Myanmar (Shen & Lu 2018) and from the Ural Mountains in Russia (Spiridonov et al. 2006), but neither |  | | Book | | 90 Axinite Beryl 130 Hydrophane 81 90 Demantoid 70 Halbanite Hyacinth 88 Cupid's Darts 70...silver, gold, and carnelian bracelet from central Asia. Diameter: 8 cm. Private collection many believed...patrols, unauthorized prospectors would flee up the mountains; this is the probable origin of their name, garimpeiros...the case of the amethyst from the Erzgebirge, mountains between Germany and Czechoslovakia, used before...commercial company in India; he accepted and returned to Asia. But he caught influenza while traveling down the |  | | Journal (issue) | | ANALYSIS / SSEF AT AUCTION SSEF COURSES / SSEF IN ASIA / ON-SITE TESTING EDITORIAL Dear Reader It is...‘Historic’ necklace with cultured pearls SSEF in Asia Age dating of shipwreck pearls SSEF in Paris Donations...in the third generation during a visit of 2014 Asia World Jewellery Fair in Hong Kong for nearly 100...exceptional auction highlights. vv The ‘Blue Belle of Asia’ loose and set vv Exceptional Burmese sapphire...sapphire at auction in the 2014 - 2015 Belle of Asia’ - was sold by Christie’s Geneva in November 2014 |  | | Journal (issue) | | of Greymouth on the west coast, in the rugged mountains to the east and in Whitcombe Pass (through which...submitted from an unknown source in Asia and were found to be demantoid garnet. An unusually large specimen...the (nephrite) jade fields in the East Sayan mountains of southern Siberia in August 1994, with notes...crystals of yellow beryl from Zelatoya Vada, Pamir mountains of Tajikistan and a group of brazilianite crystals...co-ordination, produce the emerald-green variety, demantoid. Cr3+ in octahedral co-ordination gives the green |  | | Journal (issue) | | the break-up of the former USSR, the East Sayan Mountains of Siberia were promoted as the principle nephrite-producing...foothills along the eastern flank of the Sudete Mountains of the north-east Bohemian Massif. They occur...Gems and Minerals Gem pegmatites of the Ural Mountains, Russia. P. LYCKBERG AND V. YE ZAGORSKY....177-83. The northern section of the central Ural Mountains of Russia includes notable miarolitic pegmatites...southern Ural region centred on Miass in the Ilmen Mountains produced clear topaz crystals up to 3-4 kg and |  | | Journal (issue) | | one such example—for red beryl from the Wah Wah Mountains of southwest Utah, USA. The Ruby Violet mine was... and from Kukh-i-Lal in the south-western Pamir Mountains of Tajikistan (Kondo, 2008); it is also known...influenced by the tectonic movements of South-East Asia during the closing of the Palaeo-Tethys ocean and...limitations of origin determination. Jewellery News Asia, No. 264, 56–62. Ogden J., 2012a. Editorial: Romancing...Valley with numerous villages flanked by forested mountains. Mogok Monasteries: We visited three pagodas in |
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