yttro-

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• Yttro-columbite — Yt tro co*lum bite, Yttro tantalite Yt tro tan ta*lite, n. (Min.) A tantalate of uranium, yttrium, and calcium, of a brown or black color. [1913 Webster] …   The Collaborative International Dictionary of English

• Yttro-tantalite — Yttro columbite Yt tro co*lum bite, Yttro tantalite Yt tro tan ta*lite, n. (Min.) A tantalate of uranium, yttrium, and calcium, of a brown or black color. [1913 Webster] …   The Collaborative International Dictionary of English

• yttro-columbite — yttro colˈumbite or yttro tanˈtalite noun A brownish mineral found at Ytterby, a tantalate of yttrium, iron, calcium, etc • • • Main Entry: ↑yttrium …   Useful english dictionary

• yttro-tantalite — yttro colˈumbite or yttro tanˈtalite noun A brownish mineral found at Ytterby, a tantalate of yttrium, iron, calcium, etc • • • Main Entry: ↑yttrium …   Useful english dictionary

• Yttro-cerite — Yt tro ce rite, n. (Min.) A mineral of a violet blue color, inclining to gray and white. It is a hydrous fluoride of cerium, yttrium, and calcium. [1913 Webster] …   The Collaborative International Dictionary of English

• Yttrofluorit — Yttro|fluorịt   [y ; zu Yttrium] der, Mineral, yttriumhaltige Varietät von Fluorit (CaF2) mit bis zu 20 % YF3; in magmatischen Gesteinen, v. a. in Pegmatiten …   Universal-Lexikon

• Yttrotantalit — Yttro|tantalịt   [y ; zu Yttrium], samtschwarzes oder braunes, rhombisches Mineral der chemischen Zusammensetzung (Y, U, Ca) (Ta, FeIII)2 (O, OH)6; Härte nach Mohs 5 5,5, Dichte 5,7 g/cm3; prismatische und tafelige Kristalle, in derber Form… …   Universal-Lexikon

• yttrotantalite — /i troh tan tl uyt /, n. a mineral, tantalite and niobate of yttrium and various elements, as iron, and cerium, occurring in the form of brown black crystals. [1800 10; yttro (comb. form of YTTRIUM) + TANTALITE] * * * …   Universalium

• YTTRIUM — De Ytterby, village de Suède. Symbole chimique: Y Numéro atomique: 39 Masse atomique: 88,905 g Point de fusion: 1 523 0C Point d’ébullition: 3 337 0C Densité (à 25 0C): 4,457 Élément chimique du groupe des terres rares, de couleur argentée,… …   Encyclopédie Universelle

• Fluorit — Fluorkalzium; Flussspat * * * Flu|o|rit 〈m. 1〉 = Flussspat [→ Fluor] * * * Flu|o|rịt [↑ Fluor u. ↑ it (2)], der; s, e: latinisierter, auch als Namensgeber für ↑ …   Universal-Lexikon