phonolitic

phonolitic

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Universalium. 2010.

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  • phonolitic — adjective see phonolite * * * phonolitic / litˈik/ adjective • • • Main Entry: ↑phonolite …   Useful english dictionary

  • phonolitic — pho·no·lit·ic …   English syllables

  • phonolite — phonolitic /fohn l it ik/, adj. /fohn l uyt /, n. a fine grained volcanic rock composed chiefly of alkali feldspar and nepheline, some varieties of which split into pieces that ring on being struck. [1820 30; < F < G Phonolith. See PHONO , LITE]… …   Universalium

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  • Trachyte — is an igneous, volcanic rock with an aphanitic to porphyritic texture. The mineral assemblage consists of essential alkali feldspar; relatively minor plagioclase and quartz or a feldspathoid such as nepheline may also be present. (See the QAPF… …   Wikipedia

  • Phonolite — Aegirine phonolite. Dark prismatic minerals are aegirine phenocrysts. Phonolite is a rare igneous, volcanic (extrusive) rock of intermediate (between felsic and mafic) composition, with aphanitic to porphyritic texture. The name phonolite comes… …   Wikipedia

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