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What are some of the most popular types of sandstone?
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Some of the most popular types of sandstone include conglomerate, quartzite, and limestone. Conglomerate is a sedimentary rock made up of broken pieces of other rocks that have been cemented together. Quartzite is a type of sandstone that contains quartz grains in its composition. Limestone is composed of calcium carbonate (CaCO3) which makes it harder than sandstone.