单词	quartzite
释义	quartzite /ˈkwɔːtsʌɪt / noun [mass 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.
随便看	neo-scholasticism neosemanticism Neosho River neosia neoslave neoslavery neossoptile neo-Stalinism neo-Stalinist neostigmine neostriatal neostriatum Neo-synephrin Neo-Synephrine neosynephrine neotantalite neotechnic neotechnics neotectonic neotectonics neotene neotenic neotenin neotenise neotenize

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