How is Marble Formed?

Marble is formed form limestone by heat and pressure in the Earth’s crust. These forces cause the limestone to change in texture and makup. The process is call recrystallization. Fossilized materials in the limestone, along with its original carbonate minerals, recrystallize and form large, coarse grains of calcite. The minerals that result from impurities give marble wide variety of colors and variations in patterns.