Definition of quartzite in English:

quartzite

Syllabification: quartz·ite
Pronunciation: /ˈkwôrtˌsīt
 
/

noun

Geology
An extremely compact, hard, granular rock consisting essentially of quartz. It often occurs as silicified sandstone, as in sarsen stones.
More example sentences
  • In addition to the volcanogenic sedimentary rocks, there are lenses of limestone, quartzite, shale and sandstone.
  • The most resistant rocks are quartzite and quartz-rich sandstones, and tough fine-grained rocks such as slate.
  • The envelope consists of garnet gneiss, migmatite, sillimanite gneiss, fibrolite schist, andalusite schist and quartzite, phyllite and unmetamorphosed Palaeozoic to Cretaceous sedimentary rocks.

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Word of the day erroneous
Pronunciation: iˈrōnēəs
adjective
wrong; incorrect