adularia

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• Adularia — Ad u*la ri*a, n. [From Adula, a mountain peak in Switzerland, where fine specimens are found.] (Min.) A transparent or translucent variety of common feldspar, or orthoclase, which often shows pearly opalescent reflections; called by lapidaries… …   The Collaborative International Dictionary of English

• Adularia — is a tectosilicate mineral with formula KAlSi3O8. It is a form of orthoclase which crystallizes at unusually low temperatures. It is found in the Adula Mountains of Switzerland. The genesis is usually hydrothermal (low temeperature alpine veins) …   Wikipedia

• adulária — s. f. [Mineralogia] Ortosa …   Dicionário da Língua Portuguesa

• adularia — [a΄jo͞o ler′ē ə, a΄jəler′ē ə] n. [It < Fr adulaire, after Adula, a group of mountains in Switzerland + aire, ARY] a transparent or translucent variety of orthoclase …   English World dictionary

• adularia — /aj euh lair ee euh/, n. Mineral. a sometimes opalescent variety of orthoclase formed at a low temperature. [1790 1800; < It < F adulaire, named after Adula a mountain group in Switzerland; see ARY] * * * ▪ mineral       a feldspar mineral and… …   Universalium

• Adularia — ► sustantivo femenino MINERALOGÍA Mineral que pertenece al grupo de los feldespatos, transparente y generalmente incoloro. * * * adularia (de «Adula», nombre de una montaña suiza) f. Variedad de feldespato, transparente y generalmente incolora. * …   Enciclopedia Universal

• adularia — noun A variety of orthoclase feldspar found as colorless to white prismatic crystals in cavities in metamorphic rocks. Some specimens reflect a bluish sheen along crystal faces. This phenomenon is called adularescence, and adularia with this… …   Wiktionary

• adularia — noun Etymology: Italian, from French adulaire, from Adula, Swiss mountain group Date: 1798 a transparent or translucent orthoclase …   New Collegiate Dictionary

• adularia — a·du·là·ria s.f. TS mineral. varietà di ortoclasio, spec. incolore, talvolta gialla o nocciola, usata come pietra ornamentale {{line}} {{/line}} DATA: 1806. ETIMO: der. di Adula, antico nome di un gruppo montuoso delle Alpi svizzere, con aria f …   Dizionario italiano

• adularia — pl.f. adularie …   Dizionario dei sinonimi e contrari