euxenite

euxenite
/yoohk"seuh nuyt'/, n.
a rare, brownish-black mineral of complex composition, an oxide of calcium, cerium, yttrium, columbium, titanium, and uranium.
[1840-45; < Gk eúxen(os) kind to strangers, hospitable (see EU-, XENO-) + -ITE1]

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      complex oxide mineral, a niobate–titanate that forms hard, brilliant black crystals and masses in granite pegmatites and associated detrital deposits. Titanium replaces niobium–tantalum in the molecular structure to form the similar mineral polycrase; both it and euxenite often contain rare earths. These minerals are widespread in Norway, Madagascar, and Canada and also occur in Sweden, Finland, Greenland, Australia, Brazil, and the U.S. For chemical formula and detailed physical properties, see oxide mineral (table).

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Universalium. 2010.

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  • Euxenite — Eux e*nite, n. [Gr. ? hospitable. So named because it contains a number of rare elements.] (Min.) A brownish black mineral with a metallic luster, found in Norway. It contains niobium, titanium, yttrium, and uranium, with some other metals. [1913 …   The Collaborative International Dictionary of English

  • euxénite — ● euxénite nom féminin (grec euksenos, réservé aux hôtes) Titanoniobate naturel d yttrium, de cérium et d uranium utilisé comme minerai d uranium …   Encyclopédie Universelle

  • euxenite — [yo͞ok′sə nīt΄] n. [Ger euxenit < Gr euxenos, hospitable (< eu (see EU ) + xenos, stranger, guest) + ITE1: so named from containing several rare elements] a dark colored, hard, orthorhombic mineral, (Y,Ca,Ce,U,Th)(Nb,Ta,Ti) 2O6, containing… …   English World dictionary

  • Euxenite — Infobox mineral name = Euxenite category = Oxide mineral boxwidth = boxbgcolor = imagesize = caption = Euxenite from Norway, around 11 cm of size formula = (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 color = Black, brownish black,greenish black habit = Massive,… …   Wikipedia

  • euxenite — euksenitas statusas T sritis chemija apibrėžtis Mineralas. formulė (Y,Ce,U)(Nb,Ta,Ti)₂·(O,OH)₆ atitikmenys: angl. euxenite rus. эвксенит …   Chemijos terminų aiškinamasis žodynas

  • euxenite — noun A dark brown lustrous mineral that is a mixed oxide of cerium, erbium, titanium, uranium, yttrium and other more common metals, with the chemical formula (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)O …   Wiktionary

  • euxenite — eux·e·nite …   English syllables

  • euxenite — /ˈjuksənaɪt/ (say yoohksuhnuyt) noun a brownish black mineral of complex composition, containing yttrium, columbium, titanium, uranium, etc. {Greek euxenos hospitable (in allusion to its many constituents) + ite1} …  

  • euxenite — ˈyüksəˌnīt noun ( s) Etymology: German euxenit, from Greek euxenos hospitable (from eu + xenos guest, stranger) + German it ite; from the rare elements it contains : a brownish black mineral ( …   Useful english dictionary

  • Scandium — (pronEng|ˈskændiəm) is a chemical element that has the symbol Sc and atomic number 21. A silvery white metal that is always present as compounds, scandium ores occur as rare minerals from Scandinavia and elsewhere, and it is sometimes considered… …   Wikipedia

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