Limestone

Limestone is a widely occurring Sedimentary Rock composed primarily of Calcium Carbonate in the form of the minerals Calcite or Aragonite. It typically forms in clear, shallow marine waters through the accumulation of skeletal fragments from Marine Organisms such as Coral, Foraminifera, and Mollusks. According to the Encyclopedia Britannica, Limestone makes up about 10% of the total volume of all sedimentary rocks.

This rock is highly significant in both geology and industry. It is the primary source of Lime and a critical component in the manufacturing of Cement and Concrete. In Agriculture, crushed Limestone 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 and the White Cliffs of Dover. When subjected to intense heat and pressure, Limestone undergoes metamorphism to become Marble.

Geologically, Limestone is susceptible to dissolution by rainwater and groundwater, leading to the creation of Karst topography. This process results in the formation of Caves, stalactites, and sinkholes. Technical descriptions of its formation and classification can be explored further through Geology.com.

• Marble
• Dolomite
• Sedimentary Rock
• Karst Topography