CLASSIC MARBLE OR EXOTIC STONES

Pure white marble is the result of metamorphism of very pure limestones. The characteristic swirls and veins of many colored marble varieties are usually due to various mineral impurities such as , , , , or which were originally present as grains or layers in the limestone. Green coloration is often due to resulting from originally high magnesium limestone or dolostone with silica impurities. These various impurities have been mobilized and recrystallized by the intense pressure and heat of the metamorphism.

Marble is a metamorphic rock resulting from regional or rarely contact of , either or , or metamorphism of older marble. This metamorphic process causes a complete recrystallization of the original rock into an interlocking mosaic of , and/or . The temperatures and pressures necessary to form marble usually destroy any and sedimentary textures present in the original rock.

Marble is a nonfoliated metamorphic rock resulting from the metamorphism of limestone, composed mostly of calcite (a crystalline