noun Mineralogy.
a minute body in glassy igneous rock, showing incipient crystallization.

1795–1805; crystall- + -ite1

crystallitic [kris-tl-it-ik] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To crystallite
World English Dictionary
crystallite (ˈkrɪstəˌlaɪt)
any of the minute rudimentary or imperfect crystals occurring in many glassy rocks

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica


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

Learn more about crystallite with a free trial on

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
Crystallite shape can be determined by measuring crystallite size in several different crystallographic directions.
Their results suggest that the conventional impregnation method leads to crystallite decoration and thus lower activity.
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.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature