What minerals compose rock marble?

What is Marble? Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is composed primarily of the mineral calcite (CaCO3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite. read more

Calcium Carbonate. It forms the rock limestone. Dolomite, limestone with magnesium substituting for Calcium in some areas of the crystal structure (CaMg(CO₃)₂) can also be formed into Marble. When these rocks are exposed to heat and pressure of tectonism, the rocks recrystallize into Marble. read more

It is composed primarily of the mineral calcite (CaCO 3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite. Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form a rock that is a mass of interlocking calcite crystals. read more

Marble Marble is a metamorphic rock formed when limestone is exposed to high temperatures and pressures. Marble forms under such conditions because the calcite forming the limestone recrystallises forming a denser rock consisting of roughly equigranular calcite crystals. read more