Marble is a metamorphic rock. This means that it was formed out of another rock after eons of heat and pressure. Marble is formed out of pure limestone. More »

The Taj Mahal sits on the banks of the Yamuna River in Agra, India, was built as a tomb, has architectural features from three different cultures and is a designated UNESCO World Heritage site. The structure is only part... More » Geography

A mineral is made up of one or more elements, such as iron or gold, that are fused together. A rock is classified as igneous, sedimentary or metamorphic based on how it was formed. More » Science Earth Science Geology

Marble is a metamorphic rock formed from limestone. Changes in the limestone's chemical properties due to external forces can result in the creation of marble. More »

Marble, which is a type of metamorphic rock, forms from either limestone or dolostone. The formation of marble occurs due to these minerals being under extreme pressure and temperatures. Although the main mineral in marb... More »

Marble is a soft metamorphic rock that forms at the edges of tectonic plates, where limestone is exposed to regional metamorphism. The heat and pressure of the metamorphic zone force calcite inside the limestone to recry... More »

Marble is a type of metamorphic rock found worldwide where geologic conditions are optimal to transform sedimentary carbonate stone such as limestone or dolomite. The mineral grains are recrystallized under substantial h... More »