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beryllium-aluminum silicate

См. также в других словарях:

  • beryllium — /beuh ril ee euhm/, n. Chem. a steel gray, bivalent, hard, light, metallic element, the salts of which are sweet: used chiefly in copper alloys for better fatigue endurance, in springs, and in electrical contacts. Symbol: Be; at. wt.: 9.0122; at …   Universalium

  • beryl — beryline /ber euh lin, luyn /, adj. /ber euhl/, n. a mineral, beryllium aluminum silicate, Be3Al2Si6O18, usually green, but also blue, rose, white, and golden, and both opaque and transparent, the latter variety including the gems emerald and… …   Universalium

  • Beryl — /ber il/, n. a female given name. * * * Mineral composed of beryllium aluminum silicate, Be3Al2(SiO3)6, a commercial source of beryllium. Several varieties are valued as gemstones: aquamarine (pale blue green); emerald (deep green); heliodor… …   Universalium

  • colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which …   Universalium

  • beryl — ber•yl [[t]ˈbɛr əl[/t]] n. mir jew a mineral, beryllium aluminum silicate, Be3Al2Si6O18, varieties of which are the gems emerald and aquamarine: the principal ore of beryllium • Etymology: 1275–1325; ME beril (< AF) < LL bērillus, L… …   From formal English to slang

  • beryl — [ber′əl] n. [ME & OFr beril < L beryllus < Gr bēryllos, sea green gem < Prakrit veruliya < veḷuriya, of Dravidian orig., prob. after Vēlūr (now Bēlūr), city in S India] a very hard, lustrous, hexagonal mineral, Be3Al2Si6O18, that is… …   English World dictionary

  • Crystal ball — This article is about the fortune telling object. For other uses, see Crystal ball (disambiguation). The largest flawless quartz sphere is located in the National Museum of Natural History, Washington D.C., USA …   Wikipedia

  • euclase — /yooh klays, klayz/, n. a rare green or blue mineral, beryllium aluminum silicate, BeAlSiO4(OH), occurring in prismatic crystals. [1795 1805; < F; see EU , CLASE] * * * …   Universalium

  • morganite — noun A gemstone of pegmatite deposits. Morganite is a transparent pink variety of beryl. ,Chemical composition: Beryllium aluminum silicate, BeAlSiO ,Physical properties: Mohs Hardness: 8.0 Specific gravity: 2.6 2.8 Color: Pink Luster: Glassy,… …   Wiktionary

  • euclase — eu•clase [[t]ˈyu kleɪs, kleɪz[/t]] n. mir a rare green or blue mineral, beryllium aluminum silicate, BeAlSiO4(OH), occurring in prismatic crystals: used as a gem • Etymology: 1795–1805; < F; see eu , clase …   From formal English to slang

  • euclase — [yo͞o′klās΄] n. [Fr < eu (see EU ) + Gr klasis, a breaking < klan, to break (see CLASTIC): so named from breaking easily] a very hard, brittle, monoclinic mineral, hydrous beryllium aluminum silicate, BeAlSiO4 (OH), sometimes used as a gem …   English World dictionary

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