felsite
noun Etymology: felspar + -ite Date: 1794 a dense igneous rock consisting almost entirely of feldspar and quartz • felsitic adjective

New Collegiate Dictionary. 2001.

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  • Felsite — is a very fine grained volcanic rock that may or may not contain larger crystals. Felsite is a field term for a light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Color is… …   Wikipedia

  • Felsite — couverte de formations dendritiques pyrolusite. La felsite est une roche volcanique qui peut éventuellement contenir des cristaux. Les plus grands gisements de felsite se trouvent en Arménie.[réf. nécessaire] …   Wikipédia en Français

  • Felsite — Fel site, n. [Cf. {Feldspar}.] (Min.) A finegrained rock, flintlike in fracture, consisting essentially of orthoclase feldspar with occasional grains of quartz. [1913 Webster] …   The Collaborative International Dictionary of English

  • felsite — ● felsite nom féminin (de feldspath et de silicate) Roche hololeucocrate à feldspath alcalin et quartz …   Encyclopédie Universelle

  • felsite — s. m. Mineral semelhante ao sílex …   Dicionário da Língua Portuguesa

  • felsite — [fel′sīt΄] n. [< FELSPAR + ITE1] a light colored, dense, fine grained igneous rock consisting mainly of feldspar and quartz …   English World dictionary

  • felsite — felzitas statusas T sritis chemija apibrėžtis Porfyrinių uolienų pagrindinė nevisiškai kristalinė (kriptokristalinė) masė. atitikmenys: angl. felsite rus. фельзит …   Chemijos terminų aiškinamasis žodynas

  • felsite — felzitas statusas T sritis chemija apibrėžtis Stikliška, be intarpų, granitui gimininga efuzinė uoliena. atitikmenys: angl. felsite rus. фельзит …   Chemijos terminų aiškinamasis žodynas

  • felsite — felsitic /fel sit ik/, adj. /fel suyt/, n. a dense, fine grained, igneous rock consisting typically of feldspar and quartz, both of which may appear as phenocrysts. [1785 95; FELS(PAR) + ITE1] * * * …   Universalium

  • felsite — noun a) A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals. The buff colored dacites of the Superstition Mountains are felsites. b) Often used as a generic term for any light colored volcanic rock until… …   Wiktionary

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