What is marble?

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Marble is rock that is made up of 95% of calcite. Normally, clay minerals and various minerals are added, but also organic substances, which are originally white marble colored. Marble is formed by the conversion of limestones, there are no boxes of animals and plants.

The highly valued material is white Kararski marble, which has a hardness level of 3 and resists shaking during machining. Marble is used for pavement trenches, fine marble dust is used as abrasive gravel.