felsitic
adjective see felsite

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Felsitic — Fel*sit ic, a. relating to, composed of, or containing, felsite …   The Collaborative International Dictionary of English

  • felsitic — adjective see felsite * * * felsitic / sitˈik/ adjective Consisting of a fine patchy mosaic of quartz and feldspar (also felˈsic) • • • Main Entry: ↑felsite …   Useful english dictionary

  • felsitic — See felsite. * * * …   Universalium

  • felsitic — fel·sit·ic …   English syllables

  • 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

  • Quartz-porphyry — Quartz porphyry, in petrology, is the name given to a group of hemi crystalline acid rocks containing porphyritic crystals of quartz in a fine grained matrix, usually of micro crystalline or felsitic structure. In specimens, the quartz appears as …   Wikipedia

  • felsite — noun Etymology: felspar + ite Date: 1794 a dense igneous rock consisting almost entirely of feldspar and quartz • felsitic adjective …   New Collegiate Dictionary

  • Dacite — Aphanitic QAPF diagram denoting daci …   Wikipedia

  • Spherulite — Spherulites, in petrology, are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone and rhyolite as globules about the size of millet seed or rice grain, with a duller… …   Wikipedia

  • Halleflinta — Hälleflinta (a Swedish word meaning rock flint), a white, grey, yellow, greenish or pink, fine grained rock consisting of an intimate mixture of quartz and feldspar.Many examples are banded or striated; others contain porphyritic crystals of… …   Wikipedia

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