MARBLES
Marble is formed through a process of metamorphic sedimentary rocks such as calcite or dolomite, which causes a complete recrystallization of calcium carbonate of which are predominantly composed and gives rise to a mosaic of crystals of calcite or dolomite (mineral) . The combined action of temperature and pressure during processing of sedimentary rock in marble, leads to progressive obliteration of the original structures and textures present in the rock . The color of marble depends on the presence of mineral impurities (clay, silt, sand, iron oxides, nodules of flint), existing granules or layers within the original sedimentary rock. During the metamorphic process such impurities and recrystallised are moved due to pressure and heat.
