Lime Stone

History Of Lime Stone

Limestone is the sedimentary rocks which largely consist of mineral calcite. It mostly contain variable amounts of silica in the form of flint and varying amounts of clay, silt, sand, nodules and/or layers within the rock. The basic purpose of calcite in limestone is marine organism. This marine organism secretes shells that settle out of the water column and deposits the ocean floor as pelagic ooze in the coral reef. It deposits supersaturated meteoric water. It produces speleothems like stalagmites and stalactites.

Mostly pure limestone will be in white. Different colors of limestone are exhibited, because of the impurities of clay, sand, organic remains, iron oxide and other materials. It may be crystalline, clastic, granular or massive depending upon the formation. To describe limestone, Folk and Dunham classifications are used.