 | | 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 (article/letter/editorial) | | carbonatites occur in India, Pakistan, Afghanistan and Sri Lanka; but so far not known to occur in Nepal, Bhutan...and Jawar), Afghanistan (Khanneshin) and Sri Lanka (Eppawala). This review provide the comprehensive information...(MH) – 440001, India; Geological Survey of India, Central Region, Seminary Hills, Nagpur (MH) – 440006, India...Amba Dongar, Koga, Peshawar Plain, Khanneshin, Eppawala 1 Introduction Carbonatite melts are known to...Pakistan [12, 28, 29, 54], Afghanistan [35], and Sri Lanka [32, 36]. amount of data on trace elements and |  | | Journal (article/letter/editorial) | | phosphatic marble to exploitable apatite deposit, Sri Lanka KAZUE TAZAKI a n d W. S. FYFE Department of Geology...Department of Geology, University of Peradeniya, Sri Lanka Abstract--Weathering of a granulite-amphibolite...granulite-amphibolite facies phosphatic marble from Eppawala. Sri Lanka is described. During the weathering process, apatite...Primary metamorphic phosphates in the marble from Sri Lanka are hydroxyapatite, as indicated by EPMA and XRD...deposit was discovered at Eppawala in the Anuradhapura district of Sri Lanka in 1971. The apatite complex |  | | Journal (article/letter/editorial) | | Geology, University of Peradeniya, Peradeniya ( Sri Lanka ) (Acceptedfor publicationJuly 4, 1986) Abstract...derived from high-grade metamorphic rocks from Sri Lanka are hydroxyapatite as indicated by E P M A and...post-depositionalreworking. 1. Introduction In Sri Lanka we have observed the weathering processes of two...Highland Group (2.5-2.0 Ga) at Eppawala near Anuradhapura in Sri Lanka (Jayawardena, 1976). The apatite...oxides; T r = tridymite; W h = whitlockite; H e = hematite (goethite changed by heating ); Co = corundum |  | | Journal (article/letter/editorial) | | cat’s-eye fluorapatite from the Taita Mountains, Kenya (north of Umba Valley), was described by Barot et al. (1995)...are known from the Rubikon mine in the Karibib district of the Erongo region. The GIA collection has two...cat’s-eye, from left 11.40, 8.02, and 9.60 carats, Sri Lanka, India, and Myanmar (Burma). No polarizer. GIA...greenish-yellow—coming from Mwami in the Karoi (Urungwe) district of Mashonaland West. Asia India Although transparent...carats and 10.51 carats, Mwami, Karoi (Urungwe) district, Mashonaland West, Zimbabwe. GIA Gübelin collection; |  | | Journal (article/letter/editorial) | | range in composition from aluminous bauxites to hematite, goethite, and deposits, which may range in composition...composition from aluminous bauxites to hematite, goethite, titanium sands, as well as REE [20]. Recently...abundant deposits around Meizhou City, Guangdong Province, China with the highest ΣREE range of 1162 µg/g...REE deposits in the Chilean coastal range of the central Andes were found to be up to 2000 µg/g [25]. Beach...Shelf Bottom sediments 104 to 220 [45] Central North Pacific Ocean Siliceous sediments 810.4 [46] |  | | Journal (issue) | | Winter Branch Chairmen: Midlands - G.M. Green, North West - I. Knight, Scottish - B. Jackson, South West...iridescent chatoyancy Grey orthoclase moonstone from Sri Lanka has a unique combination of a cat's-eye and a...Brazil and another colourless of 12.20 ct from Sri Lanka, but this specimen is considerably larger. Two...phenomena. The star is most probably caused by hematite (?) and ilmenite (?), and the chatoyancy could...Moonstone with a star and cat'seye combination from Sri Lanka Sunstone cat's-eye from Russia A stone described |  | | Journal (article/letter/editorial) | | early Cambrian (ca. 665–535 Ma) linkage between Sri Lanka and India Prasanna Lakshitha Dharmapriya, Sanjeewa...early Cambrian (ca. 665–535 Ma) linkage between Sri Lanka and India, International Geology Review, DOI:...early Cambrian (ca. 665–535 Ma) linkage between Sri Lanka and India Prasanna Lakshitha Dharmapriyaa,b, Sanjeewa...Science, University of Peradeniya, Peradeniya, Sri Lanka; bDepartment of Geology, Faculty of Science, University...University of Peradeniya, Peradeniya, Sri Lanka; cCentre for Earth Sciences, Indian Institute of Science |  | El Bamiki, Radouan, Raji, Otmane, Ouabid, Muhammad, Elghali, Abdellatif, Khadiri Yazami, Oussama, Bodinier, Jean-Louis (2021) Phosphate Rocks: A Review of Sedimentary and Igneous Occurrences in Morocco. Minerals, 11 (10) 1137 doi:10.3390/min11101137 | Journal (article/letter/editorial) | | Ma) Cenozoic (~40 Ma) Cenozoic (~40 Ma) Apatite-hematite breccia, carbonatite, pyroxenite ~5 Lime (calcite)... ijolite, syenite, fenite, nephelinite Sri Lanka Eppawala Ediacaran (~550 Ma) 38 Canada Lackner...Maastrichtian to the Ypresian. (Tethyan) phosphogenic province [80]. They were deposited during the Upper Creta-...Abdoun Basin provided markers theTethyan Thanetian province and Basal Ypresian [85]. Accordingly,accumulations...period compared to other deposits in the Tethyan province (Figure 5). The marine-dominated sediment bounded |  | Hirayama, Eri, Tsunogae, Toshiaki, Malaviarachchi, Sanjeewa P. K., Takamura, Yusuke, Dharmapriya, Prasanna L., Tsutsumi, Yukiyasu (2020) Prolonged Neoproterozoic high‐grade metamorphism of the Wanni Complex, Sri Lanka: New insights from petrology, phase equilibria modelling, and zircon U–Pb geochronology of partially melted cordierite gneiss from Walpita. Geological Journal, 55 (9). 6147-6168 doi:10.1002/gj.3792 | Journal (article/letter/editorial) | | high-grade metamorphism of the Wanni Complex, Sri Lanka: New insights from petrology, phase equilibria...Science, University of Peradeniya, Peradeniya, Sri Lanka | | Yukiyasu Tsutsumi5 We report new petrological...near-peak metamorphisms of the Wanni Complex (WC) in Sri Lanka, and investigate the pressure–temperature– time...metamorphism is explained by a recent tectonic model of Sri Lanka. The model suggests double-sided subduction and...cal data on high-grade metamorphic rocks from Sri Lanka, southern which were metamorphosed to regional |  | | 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...mined by primitive methods. In many instances, the Sri Lankan origin of the gemstone can be determined by |  | | Report (issue) | | Deposit/Site_Name, is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic...duplicates, for some areas we report information for a district or area, as well as for specific deposits or mines..., eds., Mineral Deposits of Europe, volume 3: Central Europe: London, The Institution of Mining and Metallurgy...Detterman, R.L., 1989, Triassic phosphate deposits, north-eastern Alaska, USA, in Notholt, A.J.G., Sheldon...Precambrian Champaner Group, near Gandhra, Panchmahal District, Gujarat, in Rao, G.V., Dasgupta, S.P., Pant, |  | | Book | | pigeon's-blood rubies are pried from both soil and central government control. Marvel over India's maharajahs...finest star ruby on public display. A product of Sri Lanka's gem gravels, today it resides at the Smithsonian...origin is uncertain, but probably emanates from Sri Lanka. Today it rests in New York's Amer1can Museum...ndwns 465 Bibliography-Montana 469 North Caroli na 472 Bibl iography- North Carolina 472 Bibliography- O ther...473 History 474 Luc Yen 474 Quy Chau (Bu Khang District) 475 Other Vietnam corundu.n1 localities 478 Mining |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Zaitsev, Anatoly N., Couëslan, Christopher, Xu, Cheng, Kynický, Jindřich, Mumin, A. Hamid, Yang, Panseok (2017) Apatite in carbonatitic rocks: Compositional variation, zoning, element partitioning and petrogenetic significance. Lithos, 274. 188-213 doi:10.1016/j.lithos.2016.12.037 | Journal (article/letter/editorial) | | Pedology, Mendel University, Brno, Czech Republic g Central European Institute of Technology, Brno University...very low Ca and high Si in apatite from Eppawala, Sri Lanka; formulae derived from their data show as...in the form of monazite, LREE fluorocarbonates, hematite and thorite 24 ACCEPTED MANUSCRIPT conspicuous...Se-Chahun iron oxide-apatite deposit, Bafq PT district, Iran: Insights from paragenesis and geochemistry...characteristics of apatites in granitoids from central Kazakhstan: implications for petrogenesis and mineralization |  | Wang, Zhen-Yu, Fan, Hong-Rui, Zhou, Lingli, Yang, Kui-Feng, She, Hai-Dong (2020) Carbonatite-Related REE Deposits: An Overview. Minerals, 10 (11) 965 doi:10.3390/min10110965 | Journal (article/letter/editorial) | | Mianning in Sichuan province, the Gannan in Jiangxi province and northern Guangdong province are the major...large deep fault that crosses the REE west coast of North America. is mostly concentrated in the Mesozoic...Ga, [20]) and the Miaoya REE deposit in Hubei province (232 Ma, association with Nb-containing minerals...existing[28]), respectively. minerals include magnetite, hematite, apatite, barite, calcite, dolomite, mica and...on the northern and southeastern margins of the North China Craton, respectively; the Maoniuping REE deposit |  | | Journal (issue) | | instrumentation such as LA-ICPMS—once primarily the province of academia—became a fixture in many gemological...main shareholders were Anglo-American Group, 45%; Central Holdings, the Oppenheimer family trust, 45%; and...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 |  | | Book | | major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...extremes of unit value and place value. Although the central realm of the industrial minerals and rocks is clear... The takeover of soda-ash markets, at least in North America, by the mineral trona is another marked...Geology of Industrial Minerals, held annually in North America, provide much geological and related information |  | | Book | | affects its present characteristics as a minera1 province, because of the exposure of the various depth...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision...multiphase, nested, and include a subsidence of the central block and the downward passage of tabular plutons...Peru, map and distribution of ore deposits in the central sector. Based on the Mapa Metalogenico del Peru...Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) straddle the |  | | Book | | affects its present characteristics as a mineral province, because of the exposure of the various depth...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision...multiphase, nested, and include a subsidence of the central block and the downward passage of tabular plutons...Peru, map and distribution of ore deposits in the central sector. Based on the Mapa Metalogenico del Peru...Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) straddle the |  | | Book | | Floral Province ..................................................... 1.5.2 Zagros Floral Province ........................... 1.5.3 Iran’s Central Plateau Floral Province ............................... 1.5...5.4 Southern Coastal Plains Floral Province ............................ 1.6 Summarized Facts About Vegetation......................................... 1.10.3 Central Mountains .............................................................................. 2.1.1 Central Iran.......................................... |  | | Report (issue) | | Sci.) North America Central and South America Australasia Far East Southern Africa Central and East...East Africa West Africa North Africa and the Middle East Northern Europe Western Europe Eastern Europe...fale micolame)a-mmit-lelig- mom) eerele] in the North-East of the “lron Square“. Apart from rich ore,...Canada Cameroons Caribbean Countries Central African Empire Central American Countries Chad Chile China...431 South West Africa 443 Soviet Union Spain Sri Lanka Sudan Surinam Swaziland Sweden 531 511 408 484 |
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