Calcite Limestone Marble
Marble is a metamorphic rock formed by the alteration of limestone by heat and pressure.
Calcite limestone marble. If the limestone is pure a white marble is formed. The calcite in the limestone changes and fossils and layering in the original limestone disappear as interlocking grains grow. The calcite in the limestone changes and fossils and layering in the original limestone disappear as interlocking grains grow. If the limestone is pure a white marble is formed.
It forms from both the chemical precipitation of calcium carbonate and the transformation of shell coral fecal and algal debris into calcite during diagenesis. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Limestone is a sedimentary rock that is composed primarily of calcite. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone.
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.