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[kwawrt-sahyt] /ˈkwɔrt saɪt/
a granular metamorphic rock consisting essentially of quartz in interlocking grains.
Origin of quartzite
1840-50; quartz + -ite1
Related forms
[kwawrt-sit-ik] /kwɔrtˈsɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for quartzite
  • The researchers say the ochre was probably rubbed on quartzite slabs to create a fine powder.
  • Their ridges, composed of white quartzite, form cliffs that gleam dazzlingly when sighted from a distance.
  • The new lobby, with quartzite floors that sport fossils, features a bar and a breakfast area.
  • Continued excavation revealed thousands of quartz fragments and a prize quartzite projectile point in pristine condition.
  • The cladding of irregular quartzite blocks was cut so accurately that no mortar was needed to hold them together.
  • The cladding of irregular quartzite blocks has been cut so accurately that no mortar was needed to hold them together.
  • The upper layer of quartzite is itself composed of multiple layers of quartzite, with vertical fractures and cracks in the rock.
  • As its name suggests, quartzite is primarily composed of quartz.
British Dictionary definitions for quartzite


a very hard metamorphic rock consisting of a mosaic of intergrown quartz crystals
a white or grey sandstone composed of quartz
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for quartzite

1837, from quartz + -ite.

Online Etymology Dictionary, © 2010 Douglas Harper
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quartzite in Science
A metamorphic rock consisting entirely of quartz. Quartzite forms when sandstone or chert are heated during metamorphism.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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