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nature : a consolidation has been the sedimentary clastic particles, which 0.625-2 mm diameter of the sand content of 50% and above, or the rest of the cement matrix. Bits of the major components of quartz, feldspar, mica, cuttings, cements the ingredients are silica, iron and calcium, etc.. Clastic sandstone by the particle size, can be divided into coarse-grained sandstone tablets of sandstone, sandstone and fine sandstone from other tablets. By Clay and miscellaneous bits of content can be divided into sand litter sandstone rock and miscellaneous two categories, the former with clay <15%. The sandstone and quartz silica content debris over 95% of those who were called quartz sandstone. The siliceous quartz sandstone or by metamorphism (mainly regional metamorphism), they were called quartzite. Construction materials generally do sandstone.
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