Iran’s position in world stone markets According to global statics, our beloved country, Iran, has the highest amount of stone diversity in the world. while other countries with a place in the stone industry like India and Brazil only have granite mines, and Italy has only marble mines. Iran has mines of marble, granite, crystal , travertine, sand stone and lime stone and Iran has significant mineral deposits. Meanwhile, in South Khorasan , more than 30 types of stones with different color spectrums have been

.Marble is a metamorphose carbonate rock that has a distinct crystalline texture due to recrystallization under heat and pressure and it is mainly composed of calcite and dolomite minerals or a combination of both .The difference in the appearance of marble and travertine is that the surface of travertine has holes, marble rarely has holes and porosity but it has fossils and light veins ?How marble stones are formed Marble is a metamorphosed stone that is formed by the recrystallization of limestone, in such a