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[kris-tl-ahyt] /ˈkrɪs tlˌaɪt/
noun, Mineralogy
a minute body in glassy igneous rock, showing incipient crystallization.
1795-1805; crystall- + -ite1
Related forms
[kris-tl-it-ik] /ˌkrɪs tlˈɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for crystallite
  • crystallite shape can be determined by measuring crystallite size in several different crystallographic directions.
  • Thus, the accuracy of the measurement is limited by the number of particles as discussed in the section on crystallite statistics.
  • Stoichiometry per molar ratio as determined by crystallite formation.
  • Their results suggest that the conventional impregnation method leads to crystallite decoration and thus lower activity.
British Dictionary definitions for crystallite


any of the minute rudimentary or imperfect crystals occurring in many glassy rocks
Derived Forms
crystallitic (ˌkrɪstəˈlɪtɪk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for crystallite

any of a type of microscopic body occurring in such glassy igneous rocks as obsidian and pitchstone. Crystallites are regarded as incipient or embryonic crystals, though they often have no recognizable crystallographic form and are too small to polarize light. They occur when magma (molten rock material) congeals so rapidly that crystallization remains incomplete. Crystallites are distinguished from microlites, which are slightly larger forms recognizable as mineral species

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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