 | | Journal (article/letter/editorial) | | BEDS OF SRI LANKA NAWARATNE Department of Geology,Universityof Peradeniya,Peradeniya,Sri Lanka Even...Even thoughthe occurrenceof gold in Sri Lanka has been mentioned in chronicles of historical im- portance...confirmedby the officersof the Mineral Surveyin the Sabaragamuwa, centraland western provinces(Ceylon Administration...p. 57), showsthe known occurrences of gold in Sri Lanka. The area under considerationis a very rugged...mountainous regionin the southeastern part of Ratnapura (Fig. 1). Figure 2 showsthe detailedgeology of |  | | Journal (article/letter/editorial) | | ratios to gem exploration in the granulite belt of Sri Lanka S.J.K. Gamage a, M.S. Rupasinghea and C.B. Dissanayake...Road, Kandy, Sri Lanka bDepartrnent of Geology, University of Peradeniya, Peradeniya, Sri Lanka (Received...ratios to gem exploration in the granulite belt of Sri Lanka. J. Geochem. Explor., 43:281-292. The geochemical...and strontium in the central granulite belt of Sri Lanka, where many of the gem deposits are found, was...that are mined at present are corundum, spinel, zircon and tourmaline. It was observed that higher Rb-Sr |  | | Journal (article/letter/editorial) | | of Beryllium and Fluorine in the Gem Fields of Sri Lanka M. S. Rupasinghe 1, A. Banerjee 1, j. Pense 1...Peradeniya, Sri Lanka Abstract. A study of the abundance of Be in the gem sediments of Sri Lanka shows that...pegmatites of the Highland and Southwest Groups of Sri Lanka, very little decomposition of the Be-bearing minerals...granites and pegmatites of the Precambrian of Sri Lanka are presumed to have been formed due to the magmatic...rocks abundant in the main gem bearing areas of Sri Lanka. Fluorine is found in the range of 400-2,000 ppm |  | | Journal (issue) | | Number 2 TABLE OF CONTENTS FEATURE ARTICLES 62 Sri Lanka: The Gem Island Peter C. Zwnan The Identification...a n y fine gemstones found on the island o f Sri Lanka, the subject of Peter Zwaan's article i n this...this issue. This fine 9.57-ct cabochon from Sri Lanka is pictured here against a 19th century lithograph...not of the publishers. SRI LANKA: THE GEM ISLAND By Peter C. Zwaan Sri Lanka, formerly Ceylon, remains...almandite and hessonile garnet. Spinel, tourmaline, zircon, moonstone, and quartz are also relatively common; |  | Filina, Maria I., Sorokina, Elena S., Botcharnikov, Roman, Karampelas, Stefanos, Rassomakhin, Mikhail A., Kononkova, Natalia N., Nikolaev, Anatoly G., Berndt, Jasper, Hofmeister, Wolfgang (2019) Corundum Anorthosites-Kyshtymites from the South Urals, Russia: A Combined Mineralogical, Geochemical, and U-Pb Zircon Geochronological Study. Minerals, 9 (4) 234 doi:10.3390/min9040234 | Journal (article/letter/editorial) | | A Combined Mineralogical, Geochemical, and U-Pb Zircon Geochronological Study Maria I. Filina 1, * , Elena...(An61–93 ), muscovite, clinochlore, and clinozoisite. Zircon, churchite-(Y), monazite-(Ce), and apatite group...as accessory phases. Besides, churchite-(Y) and zircon are also identified as syngenetic solid inclusions...Coupled Plasma Mass Spectrometry (LA-ICP-MS) U-Pb zircon geochronology showed the ages at about 290–330...290–330 Ma as recorded in zircon and sapphire zoning. On the other hand, Ti-in-zircon thermometer indicates |  | | Book | | Sri Lanka's mineral resources can enrich country's coffers Prashan Francis B.Sc. Special (Geo.,SL)...Gem &Jewellery Research & Training Institute, Sri Lanka (Ministry of Mahaweli Development and Environment)...Jewellery Research & Training Institute, Sri Lanka 2018 Sri Lanka's mineral resources can enrich country's...Gem & Jewellery Research & Training Institute, Sri Lanka All rights reserved. No part of this publication...Sutharshan 2018. ISBN 978-955-8382-04-2 Preface Sri Lanka is gifted with many varieties of high quality |  | | Journal (issue) | | for Identifying Tourmaline Species Age Dating of Zircon Inclusions in Sapphire Ethiopia Field Report 2019...3 U-Pb Ages of Zircon Inclusions in Sapphires from Ratnapura and Balangoda (Sri Lanka) and Implications...inclusion characterization, including the age dating of zircon inclusions. 30 The Talisman of Charlemagne: New...but for gemologists, applying similar analyses to zircon inclusions in corundum is an emerging practice...more about the age and origin of sapphires from two Sri Lankan alluvial deposits. Next, a team headed by |  | Peucat, J.J., Ruffault, P., Fritsch, E., Bouhnik-Le Coz, M., Simonet, C., Lasnier, B. (2007) Ga/Mg ratio as a new geochemical tool to differentiate magmatic from metamorphic blue sapphires. Lithos, 98 (1) 261-274 doi:10.1016/j.lithos.2007.05.001 | Journal (article/letter/editorial) | | pastel) and in metamorphic terrains (e.g. Mogok, Sri Lanka, Ilakaka) are characterized by low average iron...submicroscopic inclusions of columbo-tantalite and zircon respectively. Less common trace elements (e.g....(Cambodia) 12 — Ilakaka (S Madagascar) 13 — Ratnapura, Balangoda (Sri Lanka) 14 — Mogok (Myanmar) Metasomatic blue...(Cambodia) 12 — Ilakaka (S Madagascar) 13 — Ratnapura, Balangoda (Sri Lanka) 14 — Mogok (Myanmar) Metasomatic blue...My) originating in the Gulf of Guinea volcanic province (Wright et al., 1985; Scaratt and Harding, 1986) |  | | Journal (article/letter/editorial) | | in stream sediments of a granulite terrain in Sri Lanka — evidence for a mineralized belt Rohana Chandrajith...Geology, UniÕersity of Peradeniya, Peradeniya, Sri Lanka Received 17 March 1999; accepted 11 May 2000 ...located in a high-grade metamorphic terrain of Sri Lanka have been analysed for their major and trace element...Stream sediment; Geochemistry; Walawe Ganga Basin; Sri Lanka 1. Introduction ) Corresponding author. Fax:...Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Buttala, Sri Lanka. The Walawe Ganga ŽGanga |  | | Journal (issue) | | JOURNAL OF THE GEMOLOGICAL INSTITUTE OF AMERICA Sri Lanka: Where Tradition and Technology Meet Characteristics...Tomorrow 173 Duncan Pay FEATURE ARTICLES 174 Sri Lanka: Expedition to the Island of Jewels Andrew Lucas...Pedro Padua pg. 175 Offers a firsthand look at Sri Lanka’s mining, cutting, jewelry manufacturing, and...colored stones. 228 Nephrite Jade from Guangxi Province, China Zuowei Yin, Cui Jiang, M. Santosh, Quanli...article in this issue examines the revitalization of Sri Lanka’s gem and jewelry industry, achieved by combining |  | | Book | | extensive native plantations in the Northern Province, especially in the Jaffna Peninsula and the outlying...and December, the rainy season of the Northern Province. Sugar or “jaggery ” is prepared from sweet toddy...stone inthe Western Province, or of tamarind wood in the North-Central Province; in this a heavy pesile...to one family of ivory workers in the Kegalla District. The little figures of the last King of Kandy...Chief Priest are said to be contemporary portraits. Sri Wikrama Raja Sinha was the last king of the Suluwansa |  | | Book | | Edelseifen um Ratnapura . . . . . . . . . . 22 Lageskizze der Edelsteinfelder in der Provinz Sabaragamuwa Ceylons...Polonnaruwa • Kandy Nuwara Eliya Adam's Peak Ratnapura • .Pelmadulla • Rakwana Malara Karte von Ceylon...altorientalisches Dichterwort die paradiesische Insel Lanka an der Siidspitze Indiens. Es hat bis heute seine...von Edelsteinen wie gerade Ceylon.Bereits in den Lanka-Sagen finden sich manche Hinweise auf Ceylons Edelsteinreichtum...ausser Gewiirzen auch Perlen und edle Steine aus Lanka, wie Ceylon im Altertum hiess, exportiert wiirden |  | | Journal (issue) | | management in Sri Lanka P.G.R. Dharmaratne National Gem and Jewellery Authority, Colombo 3, Sri Lanka ABSTRACT:...accessing alluvial gem gravels (known as illama) in Sri Lanka for the extraction of gemstones, such as open...restoration of mined-out lands. The lessons learned by the Sri Lankan gem industry, with centuries of experience...the environment in which we live. Introduction Sri Lanka has been identified as one of the earliest sources...by sinking shafts and excavating tunnels. In Sri Lanka, only placer deposits are mined by sinking pits |  | | Journal (article/letter/editorial) | | (1987) 3.5 Ga old amphibolites from eastern Hebei Province, China: Field occurrence, Petrology, Sin-Nd isochroii...Inpntz CORRESPONDENCE Post Tectonic Granites in Sri Lanka W.I. Starin Fernando1, Shigeru Iizumi * and R...Granite is the most coinnion intrusive rock in Sri Lanka. These granites are generally coarse-grained,...Geological Map of Sri Lanka (1982) (1:506880)there are five main granitic plutons present in Sri Lanka, namely...Arangala Granite, (iv) Kotadeniya Granite a n d (v) Balangoda Granite. Crawford and Oliver (1969) reported an |  | | Journal (article/letter/editorial) | | of the Singhbhum craton. Available U-Pb age of zircon for the tronhjemite is 3448 Ma with negative ZNc...marbles and BIF (Lu et al., 1996). Available U-Pb zircon ages of the fuchsite quartzite are more than 3...Recently 3.02-2.96 of U-Pb zircon for post-granite and 2.96-2.82 Ga of U-Pb zircon for diabasic dyke are reported...North China, such as Wutai, Shanxi Province, Oingyuan, Jinin Province and western Shangdong. These greenstones...(1987) 3.5 Ga old amphibolites from eastern Hebei Province, China: Field occurrence, Petrology, Sin-Nd isochroii |  | | Journal (issue) | | instrumentation such as LA-ICPMS—once primarily the province of academia—became a fixture in many gemological...were combined under the jurisdiction of the U.S. District Court of New Jersey 168 PRODUCTION AND MARKETS...addition to the traditional spinel sources of Sri Lanka, Pakistan, and Myanmar (spinel, if polished elsewhere...start operations at the Kagem mine in the Kafubu District, historically Zambia’s largest source of emeralds...ultimately decided in eBay’s favor when the U.S. District Court of New York determined that the burden of |  | | Journal (issue) | | (Brazil and Colombia), central and southern Asia (Sri Lanka, India, Afghanistan, Pakistan, Russia, and China)...come from a number of sources, but predominantly Sri Lanka. Accented with smaller diamonds, the 129 gem corundums...scapolite, sphene, spodumene, sugilite, turquoise, and zircon), as well as for regions important for cultured...Boehm, March 1993. the alluvial gem fields of Sri Lanka and the pegmatite districts of Brazil. Efforts...Asia (Thailand, Cambodia, Myanmar, Vietnam, and Sri Lanka; again, see figure 1). Although mining continued |  | | Journal (article/letter/editorial) | | widely distributed in the Central, Ova, and Sabaragamuwa provinces, and probably throughout Ceylon, but...pyroxene dyke cutting the zircon granite (itself belonging to the Balangoda group,3 and forming an intrusive...Charnockite Series or granulites) of Massena estate, Balangoda, appears to indicate that the date of the pyroxenite...Belihul Oya and Halpe (near the 99\ mile-post), Sabaragamuwa. A number of pyroxenic sills and dykes occur...of Sherwood estate (about nine miles north of Balangoda), in the south-west corner, The vein is about |  | | Journal (issue) | | (red, green, blue and synthetic blue spinel) and zircon (high and low types). In the 1990s Sarine (then...supplier, the fluorite was mined from Cao Bang Province, northeast of Yen Bai. The crystal surfaces were...29.05 ct fluorite is reportedly from Cao Bang Province in northern Vietnam. Photo by Bilal Mahmood. ...yellow-green grossular from Kambanga, Taita-Taveta District, Voi, Kenya, is notable for having a significantly...at the Tourmaline Queen mine, also in the Pala District (e.g. Larson, 2012). So far, approximately three |  | | Journal (article/letter/editorial) | | Sediment Geochemistry of the Walawe Ganga Basin of Sri Lanka - Implications for Gondwana Mineralization Rohana...Geology, University of Peradeniya, Peradeniya, Sri Lanka * Corresponding Author (Manuscript received September...western-part of the Walawe Ganga (river) Basin in Sri Lanka is represented in this paper. The river basin...HFSE- and WE- rich accessory mineral phases such as zircon, monazite, apatite, garnet and rutile in the sediments...Walawe Ganga Basin, Sri Lanka. Introduction More than 90% of the island of Sri Lanka is made up of amphibolite |  | | Journal (article/letter/editorial) | | Gold Occurrences in Madagascar, South India and Sri Lanka: Significance of a Possible Pan-African Event...of Geology, University of Peradeniya, Peradeniya, Sri L a n k (Manuscript received April 25,2000; accepted...quantities mainly in the central and southern parts of Sri Lankd. Although gold is recovered mainly from river...also from a concordant quartz reef in central Sri Lanka and from other types of sediments such as marshy...surrounding dykes of ultramafic composition in southern Sri Lanka. The sedimentary gold has been interpreted as |  | | Report (issue) | | 99.84 (1) Betroka, Madagascar. (2) Galle district, Sri Lanka. Polymorphism & Series: (2) 18.88 62.16...concentrates. Association: Thorite, zircon, ilmenite, cassiterite, allanite (Sri Lanka); phlogopite, diopside, spinel...Distribution: In Sri Lanka, at Balangoda and near Kondrugala; in the Galle district; at Bambarabotuwa; |  | | Book | | Enterprise as carried on, chiefiy in the Sabaragamuwa district; to the splendid opportunity presented for...round off the list of precious things for which Lanka and Serendib have been famous from time immemorial...Ceylon 64, 106 Baker, Sir S., on ... 31, 128, 139 Balangoda Beligal Korale 18, 24, 26, 33 ... Belihuloy a...Garnet. 29, 30, 97, 125, 141 Gem Searching in Sabaragamuwa. Ill, 119 Gems in Ceylon ...12, 26, 59, 67,...Ramboda ... ... ... ... 140 Rangala ... .2, 31, 104 Ratnapura 7, 28, 45, 59, 106, 128. 140 Report on Gold in |  | | Journal (issue) | | ISSN: 0022-1252 J. Gemm., 1992, 23, 1 20 The Sri Lankan ruby: ruby: fact fact or orfable? fable? Ai...Aiahroof M.M.M. Mahroof Colombo, Colombo, Sri Sri Lanka Lanka Sri Lanka, or Ceylon as it was called until 1972...a hiatus in the Sri Lankan gem story. As I have written elsewhere: 'While Sri Lanka has had a good press...among those who had written, often admiringly, of Sri Lankan text writers writers like like Herbert Herbert...Anderson deal deal (and his his subsequent (and with Sri Sri Lankan Lankan gems gems more more as as aa class |  | Voudouris, Panagiotis, Mavrogonatos, Constantinos, Graham, Ian, Giuliani, Gaston, Melfos, Vasilios, Karampelas, Stefanos, Karantoni, Vilelmini, Wang, Kandy, Tarantola, Alexandre, Zaw, Khin, Meffre, Sebastien, Klemme, Stephan, Berndt, Jasper, Heidrich, Stefanie, Zaccarini, Federica, Fallick, Anthony, Tsortanidis, Maria, Lampridis, Andreas (2019) Gem Corundum Deposits of Greece: Geology, Mineralogy and Genesis. Minerals, 9 (1) 49 doi:10.3390/min9010049 | Journal (article/letter/editorial) | | and pargasite (Paranesti), spinel, zircon (Xanthi), margarite, zircon, apatite, diaspore, phlogopite and...chloritoid, ilmenite, hematite, ulvospinel, rutile and zircon (Ikaria). The main chromophore elements within...southern Madagascar, East Africa, South India and Sri Lanka; those related to the Himalayan orogeny mostly...phlogopite, zircon, margarite, muscovite, tourmaline and are associated with anorthite, phlogopite, zircon, margarite...Margarite, zircon, diaspore, phlogopite and chlorite orthoclase and muscovite. Margarite, zircon, diaspore |
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Balangoda, Ratnapura District, Sabaragamuwa Province, Sri Lanka