Change style powered by CSL. Marble is commonly used for sculpture and as a building material Cultured Granite looks like natural granite, but once again, can be formed in any shape and design. The only difference between limestone and marble is the crystalline structure. Question: What is the chemical formula for marble? So the bulk of marble is just CaCO3. Ano ang Imahinasyong guhit na naghahati sa daigdig sa magkaibang araw? Who is the longest reigning WWE Champion of all time? CAS Number: 72608-12-9 . The exact chemical composition of marble will greatly vary dependong on the location and the minerals or impurities present in the limestone during recrystallization.