quartzite
குவார்ட்சைட்
definition
noun
In addition to the volcanogenic sedimentary rocks, there are lenses of limestone, quartzite , shale and sandstone.
an extremely compact, hard, granular rock consisting essentially of quartz. It often occurs as silicified sandstone, as in sarsen stones.
example
The cobbles are dominated by pink 'quartzite' , red sandstone and vein quartz, with minor granite clasts near the contact and rare green clasts.
The most resistant rocks are 'quartzite' and quartz-rich sandstones, and tough fine-grained rocks such as slate.
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.
In addition to the volcanogenic sedimentary rocks, there are lenses of limestone, 'quartzite' , shale and sandstone.
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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