 | | Report (chapter) | | lyellcollection.org/ by guest on August 31, 2018 Geikielite: an illustrated account of the co-type specimens...co-type and other examples of the rare mineral geikielite housed in the Natural History Museum, London...short review of geikielite is provided, together with notes on its occurrence. Geikielite: a history of...the original specimens Geikielite, MgTiO3, is a member of the ilmenite– geikielite series and is the Ti...Gaines et al. (1997) and Bowles et al. (2011). Geikielite was named and described by Fletcher (1892). A |  | | Journal (issue) | | Laboratory', but many gemmologists make the journey to Sri Lanka or Thailand at least once in their lives, if not...observations on brown tourmalines from Elahera, Sri Lanka Ulrich Henn and Martin Schramm Institut für...description of brown tourmalines from Elahera, Sri Lanka. They were classified as uvite and dravite as...deposits are located in the Uva region, in the Ratnapura district and in the Tissamaharma area (Dunn, 1977...(1977) classified the brown tourmalines from Sri Lanka as uvite and dravite: Results For the analyses |  | | Report (issue) | | Geikielite MgTiO3 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group:...01 (3) 33.54 Total 100.28 99.7 100.00 (1) Sri Lanka. (2) Bergell zone, Switzerland/Italy; by electron...calcite. Distribution: From the Rakwana and Balangoda districts, Sri Lanka. At Baltistan, Kashmir, Pakistan...Kimberley, Cape Province, South Africa. From north of the Mahogany mine, Hartley district, Zimbabwe. Several...(2) Gieré, R. (1987) Titanian clinohumite and geikielite in marbles from the Bergell contact aureole. |  | | Report (issue) | | c = 5.024(4) Z=4 X-ray Powder Pattern: Rakwana, Sri Lanka. 2.92 (100), 1.516 (35), 1.721 (30), 3.61...Hf)O2 Total (1) 56.30 43.97 100.27 (1) Rakwana, Sri Lanka; by electron microprobe, average of 50 analyses...baddeleyite, geikielite, spinel, perovskite. Distribution: Name: From Rakwana, Sri Lanka. For Sri Lanka, the |  | | 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...Walawe Ganga Basin, Sri Lanka. Introduction More than 90% of the island of Sri Lanka is made up of amphibolite...(1994) revised the subdivisions of Precambrian Sri Lanka based on the geochronological, petrological and |  | | Journal (issue) | | Montana 34-43 Mines and minerals of the Georgetown District, Grant Co., New Mexico 44-50 Chalcopyrite, French...the Ophir District, Tooele Co., Utah 65-69 Minerals of the Singer mine, Goodsprings District, Clark Co...Joseph Baddeley gevonden in Kommonnangam, Rakwana, Sri Lanka, en beschreven door Fletcher. Bijna gelijktijdig...type-vindplaats ligt in Sri Lanka (het vroegere Ceylon) : Kollonnagam, Rakwana, Sabaragamuwa Province. Het typemateriaal...roze kwarts, spessartien, spinel, zirconoliet. Rakwana is daarenboven de type-vindplaats voor srilankiet |  | | 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 |  | | Journal (article/letter/editorial) | | zirconolite, baddeleyite, geikielite, spinel, and perovskite in placers of Rakwana, Sri Lanka [1]. Later, this...al. Rt Sri Sri Ilm-I Ilm-I Sri Ilm-II 200 µm (a) 200 µm (b) Rt Rt Urn Rt Sri Sri Ilm-I 20...Sciences. (a–b) Idiomorphic inclusions of srilankite (Sri) in ilmenite-I (Ilm-I) in intergrowths with rutile |  | | Journal (article/letter/editorial) | | Baddeleyite (native zirconia), a new Mineral, from Rakwana, Ceylon. By L. FLETOaEa, M.A., F.R.S. Keeper of...characters of Geikielite,1 Mr. Joseph Baddeley, who had brought the specimens from Rakwana (or Rackwann6)...Rackwann6) (80~ ' E., 6~ ' N., in the District of Kollonn~gam, Ceylon), courteously offered to present one of...of the fragments differed from any pebble of Geikielite previously noticed in presenting u number of...Page 145. ON BADDELEYITE~ A NEW MINERALs FROM RAKWANA~ OEYI,OI~. 1~ oi fracture at the part where the |  | | Journal (article/letter/editorial) | | containing coarse gravel from the streams of the gem-district of Balangoda were received. The constituent minerals... ilmenite, together with small quantities of geikielite 1, fergusonite, and other rare-earth minerals...had been collected by Mr. Joseph ]~addeley at Rakwana, Ceylon, and brought by him to England. Mr. Fletcher...mineral, geit~ietite, I T. Crook and B. ~. Jones, ~Geikielite and the ferro-magnesian titanates.' Min. ~ag...baddeleyite (native zirconia)~ a new mineral t from Rakwana, Ceylon2 ~in. l~Iag.~ 18937 vol. x~ pp. 148-60 | | | Journal (article/letter/editorial) | | containing coarse gravel from the streams of the gem-district of Balangoda were received. The constituent minerals... ilmenite, together with small quantities of geikielite 1, fergusonite, and other rare-earth minerals...had been collected by Mr. Joseph ]~addeley at Rakwana, Ceylon, and brought by him to England. Mr. Fletcher...mineral, geit~ietite, I T. Crook and B. ~. Jones, ~Geikielite and the ferro-magnesian titanates.' Min. ~ag...baddeleyite (native zirconia)~ a new mineral t from Rakwana, Ceylon2 ~in. l~Iag.~ 18937 vol. x~ pp. 148-60 |  | | Journal (article/letter/editorial) | | centre of Ceylon in the South Central, Uva, and Sabaragamuwa provinces. In this area rise lofty and often...s i t s , especially near Ratnapura and Rakwana in the Sabaragamuwa district. Here the gravels are very...rough gems occurring in the gravels at Ratnapura and Rakwana, c o r u n d u m is abundant and very often...recorded garnetiferous leptynites from the Kandy district, and Dr. I)iersche normal and zoisite-bearing...curious 'animal-shaped' hills in the Kurunegala district were described by Dr. Diersche as granite. He |  | | 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...countries, as well as Ilakaka in Madagascar and Sri Lanka (Langerwey, 1974; Gorghinian et al., 2013). Until...in Sri Lanka for which the nature of the primary deposits is still unknown. Except for Sri Lanka, Image |  | | Journal (article/letter/editorial) | | 145 On Geikielite, a New Mineral from Ceylon. By A. Dxcx. Communicated by J. J. H. TEALL, F.R.S. [Read...communication came T HEfrommineral the gem mines of Rakwana, Ceylon, and was brought to England by Mr. Joseph...with Mr. Pringle, we agreed to call the mineral Geikielite, after Sir Archibald Geikie, the Director General...character of ~he double refraction is negative. GEIKIELITE, A NEW MINERAL FROM CEYLON. 147 Action of ...the accompanying mineral is rutile. Possibly Geikielite may be found in mineral collections amongst the |  | | Journal (article/letter/editorial) | | 145 On Geikielite, a New Mineral from Ceylon. By A. Dxcx. Communicated by J. J. H. TEALL, F.R.S. [Read...communication came T HEfrommineral the gem mines of Rakwana, Ceylon, and was brought to England by Mr. Joseph...with Mr. Pringle, we agreed to call the mineral Geikielite, after Sir Archibald Geikie, the Director General...character of ~he double refraction is negative. GEIKIELITE, A NEW MINERAL FROM CEYLON. 147 Action of ...the accompanying mineral is rutile. Possibly Geikielite may be found in mineral collections amongst the |  | | Journal (article/letter/editorial) | | granulite-facies coronitic gabbro from the Grenville Province, Ontario, Canada, magmatic baddeleyite and zircon...famous gem gravels from Rakwana, District of Kollonnagam, Ceylon (now Sri Lanka ). He donated one of these...Initially the stones were thought to be parts of geikielite pebbles discovered at the same locality but upon...identified in coarse gravel from the Balangoda gem district, Ceylon, several years later (Blake and Herbert-Smith...baddeleyite stones found in the gem gravels of Sri Lanka (Blake and Herbert-Smith, 1907) may also have |  | Morishita, Tomoaki, Maeda, Jinichiro, Miyashita, Sumio, Matsumoto, Takeshi, Dick, Henry J. B. (2004) Magmatic srilankite (Ti2ZrO6) in gabbroic vein cutting oceanic peridotites: An unusual product of peridotite-melt interactions beneath slow-spreading ridges. American Mineralogist, 89 (5) 759-766 doi:10.2138/am-2004-5-609 | Journal (article/letter/editorial) | | concentrate of a gemstone mine in Rakwana in the province of Sabaragamuva, Sri Lanka (Willgallis et al. 1983)...OPX = orthopyroxene, Ilm = ilmenite, Rt = rutile, Sri = srilankite, Zrn = zircon, and Ap = apatite. and...zirconolite and baddeleyite with lesser amounts of geikielite, spinel, and perovskite, in the washing concentrate...SRILANKITE FROM OCEAN FLOORS a gemstone mine in Sri Lanka (Willgallis et al. 1983). However, srilankite |  | | Journal (article/letter/editorial) | | from Itakwana, Ceylon, where i t was found with geikielite. The crystal is opaque, and of an ironblack colour...go to form the resulting minerals. L. J. S. Geikielite. By ALLAN B. DICK( M i n . Mag., 1893,10,145-147)...mineral was found as pebbles in t,he gem mines of Rakwana, Ceylon. It is bluish- o r brownish-black, and...Kukunor and the Nan-Schan mountains, in the Chinese province Kansu. L. J. S. Analyses of Heulandite and Smithsonite...as sesqnioxide. (4) Bismuthinite, from Rosario District, Sinaloa, Mexico, gave Bi. Pb. cu. Fe. S. |  | | Journal (issue) | | occur in the John Saul ruby mine, Taita-Taveta District, Kenya (Simonet, 2000) which is located just north...change to green by heating of red corundum from Sri Lanka, and reversion to red by cooling. Thermochromy...of four green tourmalines from the Taita-Taveta District, Kenya. For the present study, the contents of...2000. Geology of the Yellow Mine (TaitaTaveta District, Kenya) and other yellow tourmaline deposits in...deposits in the Isalo area of Madagascar, from Ratnapura, Sri Lanka and from Mogok, Myanmar, a nearly complete |  | | Book (edition) | | Neltnerite Kentrolite Armalcolite Manganosite Geikielite Lepidocrocite Reflection Colour & Ø Reflectance...Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre, Kupfer...internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample as above:...grey); Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert); |  | | Journal (article/letter/editorial) | | among some specimens of the recently-discovered geikielite, and the result was a" triumph of mineralogical...(15) On a meteoric iron found in 1884 in the sub-district of Youndegin, Western Australia, and containing...384-386. (17) On a meteoric iron seen to fall in the district of Nejed, central Arabia, in the year 1863. Min...Krystallen. Leipzig, 1893, i x + 69 pp. 1892 (32) Geikielite a n d baddeleyite, two n e w mineral species...baddeleyite (native zirconia), a n e w mineral, from Rakwana~ Ceylon. Min. Mag., vol. 10, pp. 148-160. 9. 9 | | | Journal (article/letter/editorial) | | among some specimens of the recently-discovered geikielite, and the result was a" triumph of mineralogical...(15) On a meteoric iron found in 1884 in the sub-district of Youndegin, Western Australia, and containing...384-386. (17) On a meteoric iron seen to fall in the district of Nejed, central Arabia, in the year 1863. Min...Krystallen. Leipzig, 1893, i x + 69 pp. 1892 (32) Geikielite a n d baddeleyite, two n e w mineral species...baddeleyite (native zirconia), a n e w mineral, from Rakwana~ Ceylon. Min. Mag., vol. 10, pp. 148-160. 9. 9 |  | | Journal (article/letter/editorial) | | (titansaures Magnesium) — aus den Edelsteingruben von Rakwana auf Ceylon beschrieben worden ist. In dieser Notiz...Laterit (»Kabok«) dicht umhüllt. 1) A. D i c k , On Geikielite, a N e w Mineral from Ceylon. Mineral. Magaz |  | | Journal (article/letter/editorial) | | discovered this mineral in pebbles in the Rakwana region, Sri Lanka. In a second occurrence from the Yagodka...ilmenite grains are calculated to have 50±60 mol% geikielite and 2±4 mol% hematite (Table 9). They also contain...00 13.63 0.17 0.20 0.49 Total 99.76 99.48 Geikielite Ilmenite Hematite Eskolaite a b 0.484 0.455 |  | | Journal (issue) | | inclusions. СgophоtolиmiпеsceRе (77К). Liaonin Province, China. Specimen: Yana Baa. (right) Photoluminescence...crystal (about З т т across) with vacuoles. Liaonin Province, China, Specimen: Yana Bao. (left) Laser luminescence...vacuoles and mineral inclusions (10'). Liaonin Province, China. Specimen: Boo Yana. (left) Luminescence...found among the Chinese crystals from the Liaonin Province, Northeastern China (samples of these crystals...offtne (0.5 mu across) diamond crystals. Liaonin Province, China. Specimen: Yana Boo. Phosphorescence of |
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Rakwana, Ratnapura District, Sabaragamuwa Province, Sri Lanka