Limestone is an extremely capable stone

Limestone is an extremely capable stone - Limestone The...

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The limestone is a unique and historical rock that has been a part of history before Homo sapiens walked the Earth. Since then it has become of the most useful rock substances. In our existence, limestone has served as a home for marine life and has helped shape the homes we live in. Limestone can be used industrially, commercially, and helps propel scientific research. This unique rock was first seen in the Ordovician time period, which is part of the Paleozoic era dating back to 450 million years ago (Hearty 171). During this time, formations of new marine life were high due to warm waters and an abundance of organic materials in the seas. The first ever coral reefs were forming, as well as the evolution of jawed fish. Bryozoans also appeared in the Ordovician Era, which are similar to coral, however their skeletons consist of calcium carbonate (Botquelen 304). Remains of the Bryozoan species form some of the earliest establishments of limestone. Limestone is an extremely capable rock formation used in a myriad of ways. It comes in a variety of forms. This sedimentary rock derives from the mineral calcite (Becker 1105). Its chemical compound is in the form of calcium carbonate. Limestone in its purest form is white, however impurities such as clay or sand, or other chemical compounds may tinge the appearance of the stone. Limestone can be extremely soft when it is in the form of chalk, or even marl which is used as a fertilizer. Flowstone, or travertine is one of the hardest forms of limestone that can occur. It cakes on over itself in the walls of caves and produces a waterfall-like effect. Lime can also be extracted from the rock. By heating up limestone, or burning it, it damages the chemical compound and catalyzes the release of carbon dioxide (Becker 1089). The resulting lime can be
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This note was uploaded on 04/19/2008 for the course ANTH Psychologi taught by Professor Phin during the Spring '08 term at SMU.

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Limestone is an extremely capable stone - Limestone The...

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