Calcite Marble Metamorphic Rock

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.

Calcite marble metamorphic rock.

These rocks are extremely common and make up a significant portion of earth s crust. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite. Some geologists consider it to be a ubiquitous mineral one that is found everywhere. Calcite is a rock forming mineral with a chemical formula of caco 3.

It is a metamorphosed carbonate rock limestone or dolomite rock. These rocks are extremely common and make up a significant portion of earth s crust. Calcite is the principal constituent of limestone and marble. 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.

In pure form marble consists of calcium carbonate calcite and is sparkling white. Granoblastic rocks have uniformly sized equidimensional anhedral grains produced by recrystallization in a solid state metamorphism. Under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is a mass of interlocking calcite crystals. Marble is a sparkling and typically granoblastic rock.

In geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. Marble is typically not foliated although there are exceptions. Black marble also occurs. Marble takes a high polish.

Marble is a metamorphic rock consisting predominantly of calcite or dolomite. Calcite is the principal constituent of limestone and marble. Impurities produce pale gray brown or variegated colored rock. Some geologists consider it to be a ubiquitous mineral one that is found everywhere.