spherulite
noun Date: 1823 a usually spherical crystalline body of radiating crystal fibers often found in vitreous volcanic rocks • spherulitic adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Spherulite — Spher u*lite, n. [Cf. F. sph[ e]rulite.] (Min.) A minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone. [1913 Webster] …   The Collaborative International Dictionary of English

  • spherulite — [sfer′ə līt΄, sfer′yə līt΄, sfirə līt, sfiryə lāt΄] n. [ SPHERULE + ITE1] a rounded or spherical crystalline body found in some glassy volcanic rocks spherulitic [sfer′oolit′ik, sfer yoolit′ik, sfir′oolit′ik, sfir′yoolit′ik] adj …   English World dictionary

  • 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

  • spherulite — sferolitas statusas T sritis chemija apibrėžtis Rutulinis kristalitų darinys. atitikmenys: angl. spherulite rus. сферолит …   Chemijos terminų aiškinamasis žodynas

  • spherulite — spherulitic /sfer oo lit ik, yoo , sfear /, adj. /sfer oo luyt , yoo , sfear /, n. Petrol. a rounded aggregate of radiating crystals found in obsidian and other glassy igneous rocks. [1815 25; SPHERULE + ITE1] * * * …   Universalium

  • spherulite — noun a minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone. Syn: spherolithe …   Wiktionary

  • spherulite — spher·u·lite sfir yə .līt, sfer n a usu. spherical crystalline body of radiating crystal fibers spher·u·lit·ic .sfir yə lit ik, .sfer adj …   Medical dictionary

  • spherulite — GLOSSARY OF VOLCANIC TERMS Typically rounded, radiating arrays of crystal fibers produced by the high temperature devitrification of volcanic glass. In felsic rocks, the crystal fibers are generally composed of alkali feldspar and a silica… …   Glossary of volcanic terms

  • spherulite — [ sfɛrjʊlʌɪt] noun chiefly Geology a small spheroidal mass of crystals grouped radially around a point. Derivatives spherulitic adjective Origin C19: from spherule + ite1 …   English new terms dictionary

  • spherulite — spheru·lite …   English syllables

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