 | | Journal (article/letter/editorial) | | Volume 76, pages 1533-1546, 1991 Hydrous species in zircon Jmms A. Woonnuo Department of Geology, Occidental...U.S.A. Ansrn-Lcr A survey of hydrous speciesin zircon from a number of localities with a range of occunencesand...metamict zircon were also performed. The region of IR spectra of OH-bearing crystalline zircon from 4000...samplesare entirely free of OH. IR spectra of metamict zircon exhibit broad, asymmetric, isotropic OH bands similar...speciespresent.IR spectraof partially metamict zircon samplesretain some anisotropy. The breadth of their |  | | Report (issue) | | The Natural History Museum of Milan and its Madagascar Collection The Museo Civico di Storia Naturale... the museum began paleontologic fieldwork in Madagascar (upper Permian fauna and Jurassic and Cretaceous...fieldwork in Madagascar in 1996 in collaboration with other institu tions in Madagascar, Italy, and the...Pezzotta has spent a total of twenty nine months in Madagascar making geological-mineralogical surveys. In collaboration...both classic and new minerals and gemstones from Madagascar opened at the Natural History Museum in Milan |  | Schofield, D.I., Thomas, R.J., Goodenough, K.M., De Waele, B., Pitfield, P.E.J., Key, R.M., Bauer, W., Walsh, G.J., Lidke, D.J., Ralison, A.V. (2010) Geological evolution of the Antongil Craton, NE Madagascar☆. Precambrian Research, 182 (3) 187-203 doi:10.1016/j.precamres.2010.07.006 | Journal (article/letter/editorial) | | Geological evolution of the Antongil Craton, NE Madagascar夽 D.I. Schofield a,∗ , R.J. Thomas a , K.M. Goodenough...Minérales, Ampandrianomby 101, Antananarivo, Madagascar b c a r t i c l e i n f o Article history:...form 7 July 2010 Accepted 9 July 2010 Keywords: Madagascar Archaean Palaeoproterozoic Antongil Geochronology...fundamental Archaean building blocks of the island of Madagascar. They were juxtaposed during the lateNeoproterozoic...previously published and new geochemical and U–Pb zircon analyses to provide an event history for its evolution |  | | Journal (article/letter/editorial) | | Auburn, Alabama 36849-5305 cookrob@auburn.edu Zircon Downloaded by [Tufts University] at 09:35 10 October...diverse paragenesis and resistance to weathering, zircon is one of the most widely distributed and persistent...colorless and blue) zircon are cut as gemstones. Scientists are particularly fond of zircon because of its...the scholarly periodical Elements is devoted to zircon; http:// www.elementsmagazine.org.) Although specimens...consistent sources, and the list of once-productive zircon localities is quite long. The Pikes Peak region |  | | Report (issue) | | Zircon ZrSiO4 c 2001 ° Mineral Data Publishing, ver sion 1.2 Crystal Data: Tetragonal; may be metamict...Lanka. From Mt. Ampanobe, near Fianarantsoa, and Itrongahy, near Betroka, Madagascar. At Teete, Mozambique... Gibbs, and P.H. Ribbe (1971) The structure of zircon: a comparison with garnet. Amer. Mineral., 56, |  | | Catalog/List | | Signature® Internet Session 2 Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 (HERITAGELive...Topaz Klein Spitzkopje, Spitzkopje Area, Karibib District, Erongo Region, Namibia Klein Spitzkopje in Afrikaans...57007 Jeremejevite Ameib Farm 60, Usakos, Karibib District, Erongo Region, Namibia Jeremejevite crystals...Cuprite Onganja Mine, Onganja, Seeis, Windhoek District, Khomas Region, Namibia One of the iconic Cuprite... 57009 Cerussite Kombat Mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia Kombat Cerussites |  | | Book | | crandalJite Pyrochlore-mi cro]j te Uraninite, zircon Uraninite Uraninite, fergusonite, samarskite, xenotime...eschynite, thorite Monazi t,e, cheralite Thorianite, zircon Zirkeli te, clarkeite, al!a.ni te, chevkini te...allanite, spheue Chevkinite Metatorbernite Zircon, baddeleyite Zircon O-(OR)2-F 2 .... . . l\!Iicrolite, apatite...Jnineral are known, its minimum age may be calculated. Zircon has been used for age detern1ination by measuring...Fe2 and lJ4. At least some metamict n1inerals (zircon, samarskite, and polycrase) give sharp electron-clifiraction |  | | Book | | diamond, corundum (ruby and sapphire) , spinel, and zircon—the most likely constituents of placers include...grains. Vast accumulations of ilmenite, rutile, and zircon line the beaches Florida. ilmenite, coasts of...radioactive minerals described in this book, although zircon and a few others often possess this vital property... Sulfate Barite Silicate Titanate Vanadate Zircon Ilmenite Vanadinite wo, Tungstate Scheelite...country. A more consistent output comes from Madagascar, Ceylon, Mexico, Siberia, and Central Europe |  | | Book (volume) | | Chondrodite Humite, Clinohumite ...... 48 ....... 49 ZIRCON.59 SPHENE.69 GARNET GROUP.77 Almandine .........Forsterite, crystalline limestone, Mogok Mining District, Burma (Adams and Graham, 1926). Olivine, with..., 1926. On some minerals from the Ruby mining district of Mogok, Upper Burma. Trans. Roy. Soc. Canada...the olivine group from occurrences in the Ensky district. Doklady Acad. Sci. USSR, vol. 57, p. 603. Sun...the olivine group from occurrences in the Ensky district. USSR, vol. 57, p. 603 (M.A. 10-419). Tilley, |  | | Book | | quartz veins. Graphite deposits are In Sri Lanka, Madagascar, Russia, South Korea, Mexico, the Czech RepubUc...(Germany); it occurs elsewhere at Lake Valley District (New Mexico, USA), Atonopah (Nevada, USA), Broken...include Broken Hill (NSW, Australia), Mammoth District (Arizona, USA) and the Mendip Hills (Somerset...splnels come from gravels In Sri Lanka, Myanmar and Madagascar. Good crystals are found at Vesuvius and Lazio...Good localities are Mogok (Myanmar), Sri Lanka, Madagascar, Glebe Hill (South Africa), Ardnamurchan (Scotland) | | | Book | | quartz veins. Graphite deposits are In Sri Lanka, Madagascar, Russia, South Korea, Mexico, the Czech RepubUc...(Germany); it occurs elsewhere at Lake Valley District (New Mexico, USA), Atonopah (Nevada, USA), Broken...include Broken Hill (NSW, Australia), Mammoth District (Arizona, USA) and the Mendip Hills (Somerset...splnels come from gravels In Sri Lanka, Myanmar and Madagascar. Good crystals are found at Vesuvius and Lazio...Good localities are Mogok (Myanmar), Sri Lanka, Madagascar, Glebe Hill (South Africa), Ardnamurchan (Scotland) |  | | Book (edition) | | ground, appears quite undamaged on the outside. Zircon is commonly affected by thorium, as is monazite...BLOCKY STUBBY STOUT EQUANT —_ cross sections Zircon t Bu Microcline ooo Si Ne CRYSTAL HABITS...(phyllosilicates) Frameworks (tektosilicates) Minerals Zircon, garnets Beryl, tourmaline Amphiboles, pyroxenes...striated-vertically) Square prisms with pyramids—zircon, rutile (Figure 69), scapolite Dipyramids, usually...1360 1535 2255 2480 2795 Barite Quartz Corundum Zircon 1580 1710 1774 2500 2876 3110 3225 4532 Heat | | | Book (edition) | | ground, appears quite undamaged on the outside. Zircon is commonly affected by thorium, as is monazite...(phyllosilicates) Frameworks (tektosilica tes) Minerals Zircon, garnets Beryl, tourmaline Amphiboles, pyroxenes...striated-vertically) Square prisms with pyramids-zircon, rutile (Figure 69), scapolite Dipyramids~ usually...Pyrite Cuprite Fluorite Iron Ba rite Quartz Corundum Zircon -39 +113 271 300 548 630 801 961 1050 1062 1083...quartz crystals are also caused by radiation damage. Zircon, monazite, allanite, and other species commonly |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | has been disrupted by ionizing radiation, (e.g., zircon) and (3) certain naturally occurring liquids (H...Mineralogical Magazine A. LaCroix, Mineralogie de Madagascar, 1922 P. Embry and Fuller Manual of New Mineral...Co., Bonanza mine, Trinity Co., Michigan Bluff district, Placer Co., in AK, placers at Fairbanks, Iditarod...and quartz veins at Juneau. In Canada, Noranda district, PQ; Porcupine, Kirkland Lake, and Larder Lake...deposits, ON; Atlin and Caribou, BC; and Klondike district, YT. In Mexico, Altar and Magdalena, SON; Parral |  | | Book (edition) | | idocrase, apopltyllite. sca polil e: pyramids, zircon; square tabular, wulf enite. Hexag?nal System Hexagonal...corundum, calcite (from Franklin, N.J.), aragonite, zircon, sodalite (hackn1anite), willemite, fluorite. The...staurolite (twin), almandite (massive and crystal), zircon (crystal). 2 A toms and Minerals When we talk...ground, appears quite undamaged on the outside. Zircon is co1n1nonly affec ted by thor ium, as is monazite...(phyllosilicates) Frameworks ( tek tosilica tes) Nlin ern ls Zircon , garnets Beryl, tourmaline Amphiboles, pyroxenes |  | | Report (issue) | | the results and Zr03 if it contains considerable zircon or eudialyte. of calculation, but it is to be deplored;...analyses of a series show evident eudialyte, .or zircon, and in alkalic, especially sodic, signs of error...New Jersey, Pennsylvania, Delaware, :Maryland, District. of Columbia, Virginia, Kentucky, North Cn.rolina...Abyssinia. British East Africa. Genuan East Africa. Madagascar (Reunion). Rhodesia. Transvaal. Natal. Cape Colony...country is omitted if the State, province, or district is given and is well known, though it is inserted |  | | Book (volume) | | . Hatchettolite . . . . . . . . . . . . . . .. Zircon ...................... Paragenesis .............. . . . Varieties and Decomposition Products of Zircon ....... Hyacinth ................. Wisaksonite...Zentralmassivs an mehreren Stellen in der Umgebung von Puy, Haute Loire. Hyacinth in Alluvionen des Riou Pezouliou...des Vork. Lage der Aufbereitung Cudgen Rutil{' Zircon Cudgen Headland, Strand und Vordüne Cudgen Headland...Mooball Station, 39 km südlich der Grenze .-375 94 Zircon Rutil Limited Seven Mile Beach und Tallow Beach |
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Ampanobe, Ikalamavony Commune, Ikalamavony District, Haute Matsiatra, Madagascar