 | | Journal (issue) | | Robert M. Shipley, Jr. The Chanthaburi-Trat Gem Field, Thailand Peter C. Keller 197 Gemstones with Alexandrite...GEMOLOGY Winter 1982 185 THE CHANTHABURI-TRAT GEM FIELD, THAILAND By Peter C. Keller With th e recent drastic...of Ch an tliabut i an d Ttat in south eastern Thailand. Thi s article reviews th e geology of th ese...gical Institute of America 186 Chanthaburi -Trat, Thailand hailand has been a world supplier of gem ruby...gem rubies come from Thailand. Of these, 85% to 90% come from the Chanthaburi-Trat district alone (Aranyakanon |  | | Book | | Rock: 71 The Ruby Deposits of Chanthaburi-Trat, Thailand PART III Gemstones Formed by Very High Temperatures... which describes the rubies of Chanthaburi-Trat, Thailand. As we go deeper into the earth's crust, we...of chrysoberyl (Fig. 1-3), ruby, garnet, spinel, zircon, peridot, tourmaline, beryl, moonstone, and many...along with the surrounding area in Sabaragamuwa Province, the major gemproducing area on the island. The...located about 115 km northeast of Colombo in Central Province, has grown in importance to become the second | | | Book | | Rock: 71 The Ruby Deposits of Chanthaburi-Trat, Thailand PART III Gemstones Formed by Very High Temperatures... which describes the rubies of Chanthaburi-Trat, Thailand. As we go deeper into the earth's crust, we...of chrysoberyl (Fig. 1-3), ruby, garnet, spinel, zircon, peridot, tourmaline, beryl, moonstone, and many...along with the surrounding area in Sabaragamuwa Province, the major gemproducing area on the island. The...located about 115 km northeast of Colombo in Central Province, has grown in importance to become the second |  | | Book | | Asian Institute of Gemological Sciences, Bangkok, Thailand Butterworth-Heinemann London Boston Singapore...(colour swirls), etc. Major sources: Burma, Thailand, Cambodia, Sri Lanka, India, Australia, Kenya...sapphire - Sri Lanka 77 Ruby - Thailand and Cambodia 80 Sapphire - Thailand 86 Sapphire - Pailin, Cambodia...areas 251 Burmese sapphires 252 Bibliography 253 Thailand and Cambodia 254 History 254 Mining areas 261...yellow and blue colour, such as topaz, quartz, zircon and others. History Among the oldest Western texts |  | Giuliani, Gaston, Groat, Lee, Fallick, Anthony, Pignatelli, Isabella, Pardieu, Vincent (2020) Ruby Deposits: A Review and Geological Classification. Minerals, 10 (7) 597 doi:10.3390/min10070597 | Journal (article/letter/editorial) | | treatment techniques were developed in the 1990s in Thailand. These were different from the traditional blow-pipe...dominate the ruby trade in the early 1990s and Thailand increased its importance as the Worldās main ruby...(54) Namya; Mong Thailand: Namya; (55) Mong Thailand: Chanthaburi-Trat (Bo Waen, Bo Na (55) Wong, WatHsu...BoChanthaburi-Trat Rai, Nong Bon). (Bo Cambodia: (57) Australia: Lava Plains; (56) Waen, Bo NaPailin, Wong...Wong,Samlaut. Wat Tok Japan: Phrom,(58) Bo Ida. Rai, Nong Bon).(59) Cambodia: (57)(60) Pailin, Anakie |  | | Book | | BalmerandMichaelS.Krzemnicki UāPb Dating of Zircon and Zirconolite Inclusions in Marble-Hosted...of SE Asia (Vietnam, Laos, Cambodia, Malaysia, Thailand, Indonesia, Myanmar and Malaysia), and has published...dating on gem-quality ruby (and spinel) by using zircon and zirconolite inclusions in these rubies and...zircons and zirconolite crystals. In the study, 109 zircon and 14 zirconolite grains were analyzed from ruby...were made of core and rim zones where well deļ¬ned. Zircon cores ranged from 94 to 26 Ma and rims from 30 |  | | Book | | 374 ā¢ RUBY & SAPPHIRE 17 329 296 Kenya Thailand/Camborua 374 Two geologists' dream: T heir own...of Thailand/Cambodia ruby 439 Characteristics ofThai/Cambodian sapphire 442 Bibliography-Thailand/Cambodia...to the rubies, sapphires and jade of Burma and Thailand, jewels and jewelry are a constant fixture. India...destined to become my home for over a decade. Thailand was, is, and probably always will be, one of those...was off visiting che Cainbodian border, Mae Sai, Bo Ploi, Phrae, Chanthaburi, India, Sri Lanka, Burma |  | | Journal (issue) | | the Wessel mine near Hotazel by Karuman, N. Cape Province, S. Africa, and to have been supplied by the firm...[Manuscript received 18th November, 1978.] REPORT FROM THAILAND, 1978 By K. W. FINDLAY, B.Sc.(Eng.),C.Eng., F...E., F.I.Mech.E, F.G.A. On our second visit to Thailand*, in March, 1978, we wandered through Chantaburi...Pailin, Cambodia. Khau Ploy Waen (Figures 2-5) is now a sacred hill; Bo Rai, 48km due East of Chantaburi...Cambodian border, 12Ā°36'N. 102Ā°30/E. Nong Bar, Bo Waen and Na Wong are stated to be producing rubies in |  | | Journal (issue) | | Kane Helena, Montana Kenneth Scarratt Bangkok, Thailand Shigeru Akamatsu Tokyo, Japan Jaroslav HyrÅ”l...instrumentation such as LA-ICPMSāonce primarily the province of academiaābecame a fixture in many gemological...other means, mainly through illicit smuggling into Thailand. Other Producers. Colombia remained the major...Association show was down 19% (Weldon, 2009). Thailand, which accounts for 70% of the worldās polished...to $201.5 million (Gem and Jewelry Institute of Thailand, 2010). By late 2009, colored stone dealers were |  | | Journal (issue) | | Lucerne, Switzerland Kenneth Scarratt Bangkok, Thailand C. W. Fryer Santa Monica, California John I...various mineral inclusions (such as zirconium [Zr] in zircon) or as constituents in fractures. The particular...stone was from a basalt-hosted deposit (such as Thailand); microscopy also indicated a basaltic origin...inclusions Localitiesa Sapphire, clinopyroxene, zircon, Fe-rich spinel, garnet; sometimes sapphirine ...1981; Sutherland et al., 1998) ThailandāChanthaburi, at Bo RaiāBo Waen (Charaljavanaphet, 1951; GĆ¼belin |  | | Book | | radioactive material (as in the case of metamict zircon) and the development of mineral inclusions from...corundum and emerald rutile in quartz spinel in ruby zircon in garnet, corundum and kornerupine Many of these...inclusion is a uranium-bearing pyrochlore) and zircon crystals are common in Sri Lanka gemstones. The...and spinel ā¢ uraninite in Sri Lanka sapphire ā¢ zircon in corundum. Apatite is a characteristic mineral...Examples of twinning can be seen in rubies from Thailand and in the feldspar gemstones. Zones of growth |  | | Book (edition) | | Spinel Topaz Tourmaline The Garnets Feldspar Group Zircon Peridot 69 92 117 150 167 171 175 185 195 238...contributors from Australia, Canada, Germany, Thailand, Vietnam, the UK and the USA, making this a truly...sapphires and zircons found close to basaltic flows in Thailand, Australia 11 The Geological Sources of Gems...intermediate and acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals...was affected by the heat of the basaltic magma Thailand, diamonds are xenocrysts accidentally incorporated |
|
