Marble

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism . It is composed primarily of the mineral calcite  ( CaCO3 )  and usually contains other minerals ,  such  as clay minerals , micas , quartz , pyrite , iron oxides , and graphite . Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form…

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Limestone

Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineralcalcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris. It can also be a chemical sedimentary rock formed by the…

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Granite

Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth’s surface. Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually  gives granite a red, pink, gray,  or  white…

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Travertine

Travertine is a natural stone such as Marble, Granite, Onyx, Limestone, Slate etc. The key difference between Travertine and other natural stones lies in the formation of the rock, the hardness of the stone and the appearance. Travertine is formed in hot springs and/or limestone caves. Travertine is not the same as Marble or Limestone which falls…

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