distinct, separate, discrete mean not being each and every one the same. distinct indicates that something is distinguished by the mind or eye as being apart or different from others. â¨two distinct versionsâ© separate often stresses lack of connection or a difference in identity between two things.
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO 3). It is the raw material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar. 2  Pulverized limestone is used as a soil conditioner to neutralize acidic soils. 3  It is crushed for use as aggregate âthe solid base for many roads as well as in asphalt concrete.
The chalk used in classrooms around the world is a type of sedimentary rock. Limestone is a sedimen â¦ tary rock that is used in concrete, building stones, antacids, soil conditioner, and steel making. Coal is another sedimentary rock which is used to produce heat and electricity. Shale is used to make brick. Sandstone and limestone are used as building stone and in the production of glass. 2  Limestone is also used for hard core in roads, and is cooked to make cement. 3  Shale is mixed with sand and used to make bricks.