Limestone<\/a> is a widely occurring Sedimentary Rock<\/a> composed primarily of Calcium Carbonate<\/a> in the form of the minerals Calcite<\/a> or Aragonite<\/a>. It typically forms in clear, shallow marine waters through the accumulation of skeletal fragments from Marine Organisms<\/a> such as Coral<\/a>, Foraminifera<\/a>, and Mollusks<\/a>. According to the Encyclopedia Britannica<\/a>, Limestone<\/a> makes up about 10% of the total volume of all sedimentary rocks.<\/p> This rock is highly significant in both geology and industry. It is the primary source of Lime<\/a> and a critical component in the manufacturing of Cement<\/a> and Concrete<\/a>. In Agriculture<\/a>, crushed Limestone<\/a> is used to neutralize acidic soils. Historically, it has been used as a major building material for iconic structures like the Great Pyramid of Giza<\/a> and the White Cliffs of Dover<\/a>. When subjected to intense heat and pressure, Limestone<\/a> undergoes metamorphism to become Marble<\/a>.<\/p> Geologically, Limestone<\/a> is susceptible to dissolution by rainwater and groundwater, leading to the creation of Karst<\/a> topography. This process results in the formation of Caves<\/a>, stalactites, and sinkholes. Technical descriptions of its formation and classification can be explored further through Geology.com<\/a>.<\/p>