Marble Definition Metamorphic

A metamorphic rock formed by alteration of limestone or dolomite often irregularly colored by impurities and used especially in architecture and.

Marble definition metamorphic.

Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met. 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. Although metamorphic rocks typically form deep in the planet s crust they are often exposed on the surface of the earth.

Metamorphic rocks arise from the transformation of existing rock types in a process called metamorphism which means change in form. Foliated means the parallel arrangement of certain mineral grains that gives the rock a striped appearance. 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. Common metamorphic rocks include phyllite schist gneiss quartzite and marble.

Slate is another common metamorphic rock that forms from shale. Marble is commonly used for sculpture and as a building material. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. In this hand specimen of vermont marble the crystals are small.

Metamorphic rock any rock that results from the alteration of preexisting rocks in response to changing conditions such as variations in temperature pressure and mechanical stress and the addition or subtraction of chemical components. The preexisting rocks may be igneous sedimentary or other metamorphic rocks. A hard crystalline or granular metamorphic limestone white or variously colored and sometimes streaked or mottled which can take a high polish. It is much used in building and sculpture 2.

A piece or slab of this stone. This type of metamorphic rock consists of recrystallized calcite in limestone or dolomite in dolomite rock. Marble is made by regional metamorphism of limestone or dolomite rock causing their microscopic grains to combine into larger crystals. Marble synonyms marble pronunciation marble translation english dictionary definition of marble.