 | | 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) | | Metasomatism of High-Grade Orthogneisses from Sri Lanka K.V. Wilbert Kehelpannala and N. Prasanna Ratnayake...of Fundamental Studies, Hantana Road, Kundy, Sri Lanka e-mail: wilbert@ifs.ac.lk (Mrm~iscriptreceived...microcliiie-bearing rocks exposed around Ambagaspitiya, Sri Lanka. These rocks are medium- to coarsegrained and...of Sri Lanka, especially in the newly defined Wanni and Vijayan Complexes (Geological Map of Sri Lanka... Aranayake, Mawanella, Kegalle, Galigomuwa, Avissawella and Tonigala in the Wanni Complex (Fig. 1).The |  | | 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 (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...the areas omitted (e.g., Russia, North America, western Africa, and China), they were less significant—in...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 |  | | Journal (issue) | | Prospectors' Guide Map to the Gem Deposits of Sri Lanka C. B. Dissanayuke and M.S . Rupasinghe Two Treated-Color...CT; Mary C. Jensen, Toledo, OH; Joyce G. Jessen, Western Springs, IL; Jerry Johnson, Kennewick, WA; David...of metamorphic origin (from localities such as Sri Lanka, Myanmar, Please see LETTERS, p. 226 Figure B...Edwardian England and their counterparts in other Western countries. Distinct from the more conservative...pearls, preferred by Western society, were Bahrain in the Persian Gulf, Ceylon (now Sri Lanlza), and Australia |  | | Journal (issue) | | Branch: I. Knight, F. G .A. South Yorkshire & District Branch: I. R. M. Lewis, F.G.A. Examiners: B. W...originate from sources near Lundazi in the eastern province. Pegmatites mined in that area a number of years...FERROAXINITE-ANOTHER FERROAXINITE—ANOTHER NEW GEM FROM SRI LANKA By HENRY HENRY A, Ph,D" F.G,A" A. HANNI, HÄNNI...have referred to the abundance of gemstones in Sri Lanka. As one of the productive localities of valuable...South-East Asian locality. During his visit to Sri Lanka in October 1980, one of the authors (M.G.) was |  | | Journal (issue) | | round brilliant-cut, both from the Argyle mine in western Australia. They represent typical examples of Hrich...some rare hydrogen-rich diamonds from Argyle in western Australia exhibit a violetish-grey to greyish-violet...1983); therefore, in spite of of its better from Sri Lanka, show X-ray diffraction diffraction data which...reliableidentificaidentification.localities in Sri Lanka, and also from at least one diffraction seems...tion. locality in Burma (Spengler, 1983). In Sri Lanka refractive a zincian variety with relatively high |  | | Catalog/List | | DIAMOND PENDANT Coscuez, La Peña Blancas Muzo Mining District, Columbia Of large size for the species, this...TRAPICHE EMERALD Coscuez, La Peña Blancas Muzo Mining District, Columbia Trapiche emeralds are in a class by...sold without reserve 2063 CAT’S EYE HELIODOR Sri Lanka A large oval cabochon beryl displaying a bright...000 2084 2085 CHRYSOBERYL VAR. ALEXANDRITE Sri Lanka The oval, mixed-cut Chrysoberyl var. Alexandrite...Accompanied by a Global Gem Testing Laboratory, Colombo, Sri Lanka gem brief numbered 51643 dated April 25, |  | | Journal (issue) | | Spinels of Mogok – A Brief Overview Spinels from Sri Lanka 54 The Spinels of Mahenge, Tanzania In Search...Responsibility 94 Book Review Discovering the Gems of Sri Lanka 98 100 108 113 Members 14 Saurabh Bansal Damien...Shirley Xue Li Zhang, Hong Kong E. Gamini Zoysa, Sri Lanka Advisors Jean Claude Michelou, Colombia Ruben...gem-mining and jewelry conglomerates call for strict Western policy standards of compliance. These contradict...countries, as well as Ilakaka in Madagascar and Sri Lanka (Langerwey, 1974; Gorghinian et al., 2013). Until |  | | Journal (issue) | | North-West Branch: S. Hill,: F.G.A. South Yorkshire & District Branch: J. L Reynolds, F.G.A. Examiners: E. A...stated that it occurred with topaz in the Taplejung District, Dhankuta Zone of eastern Nepal (see Fig. 2)....quality sapphire was also reported from the same district by A. Chikayama at the 19th International Gemmological...Gemmological Conference held in Beruwala, Sri Lanka, in November 1983. It is possible that the source of... Brazil, 8.19 ct (left); water-worn crystal, Sri Lanka, 9.75 ct (right); crystal showing common 'square |  | | Journal (issue) | | inclusion in a pink spinel octahedron from Sti Sri Lanka. Photomicrograph by Photomicrograph byJohn JohnI...For illustration of this technique, a natural pink Sri Lankan spinel crystal containing a transparent, ...X-ray means as a comparatively common inclusion in Sri Lankan spinels (Gübelin and Koivula, 1986). This...in Hanoi, one in Ha Nam Ninh Province and another in Hai Hung Province, the latter two are both in the...and Espirito Santo stone, rutile, sapphire and zircon. Locally chrysoberyl and, nowadays, only in detrital |  | | 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...gems—cut supplies of Myanmar’s ruby and jade in Western markets to virtually nothing. This was particularly...addition to the traditional spinel sources of Sri Lanka, Pakistan, and Myanmar (spinel, if polished elsewhere...(Laurs, 2009) following a 1999 discovery in the western part of that country. Large-Scale Mining Operations |  | | Journal (issue) | | Benton & S. Avel/n 83 Euhedral sinhalite from Sri Lanka ............................ 91 by L. C. Pit/lln11...locally abundant. Diamond Hill is formed on the western limb of a nonh-south-trending syncline with displacement...Mure-Ii-April /995 EUHED RAL S INHALI TE CRYSTALS FROM SRI LANKA v�v Lawrence C. Pitman, Cornelius S. Hu rlbut...Euhedral sinhalite crystals, reported here ji·om Sri Lanka for the first time, have yielded mo,phological...minerals found in the alluvial gem deposits of Sri Lanka. It was first recognized and described as a new | | | Journal (issue) | | Benton & S. Avella 83 Euhedral sinhalite from Sri L a n k a .........................................locally abundant. Diamond Hill is formed on the western limb of a north-south-trending syncline with displacement...Euhedral sinhalite crystals, reported here from Sri Lanka fo r the first time, have yielded morphological...minerals found in the alluvial gem deposits of Sri Lanka. It was first recognized and described as a new...noted sinhalite from Eheliyagoda in Sabaragamuwa Province. Gunawardene and Rupasinghe (1986) in cluded |  | | Book | | 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...im Tai des Sitawaka-Ganga. Die Umgebung von Avissawella, Ratna pura und Balangoda unterhielt die am...befreit wurden. Vom palaoncologischen Institut in Colombo sind diese Fossilien wahrend 25 Jahren an zahlreichen |  | | Report (issue) | | ___________________ _ Cape of Good Hope Province ___________ _ Transvaal Province ____ -_-_------------Natal __...----------------------Victoria ___ ---------------------------_ Western Australia ___ ------------------New Zealand ______...Coastal Plain province ___________________ _ Stream sediments in the Coastal Plain province ________________________...and placers in the Blue Ridge province _____________ _ Spruce Pine district ____________ Madison County...Haywood County _____________________ _ Zirconia district ___________ ----Macon, Jackson, and Clay Counties |
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