Definition of quartzite in English:

quartzite

noun

Geology
  • An extremely compact, hard, granular rock consisting essentially of quartz. It often occurs as silicified sandstone, as in sarsen stones.

    ‘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.’
    • ‘The cobbles are dominated by pink quartzite, red sandstone and vein quartz, with minor granite clasts near the contact and rare green clasts.’
    • ‘Based on field observations, a generalized sequence of events and mineralization at the Melco deposit began with structural deformation along a contact of sandstone and quartzite during the Mesozoic Period.’

Pronunciation

quartzite

/ˈkwôrtˌsīt/ /ˈkwɔrtˌsaɪt/