Marble Definition Metamorphic

A piece or slab of this stone.

Marble definition metamorphic. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Metamorphic rocks arise from the transformation of existing rock types in a process called metamorphism which means change in form. Common metamorphic rocks include phyllite schist gneiss quartzite and marble. 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.

Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met. It is much used in building and sculpture 2. This type of metamorphic rock consists of recrystallized calcite in limestone or dolomite in dolomite rock. Some kinds of metamorphic rocks granite gneiss and biotite schist are two examples are strongly banded or foliated.

Slate is another common metamorphic rock that forms from shale. A metamorphic rock formed by alteration of limestone or dolomite often irregularly colored by impurities and used especially in architecture and. Foliated means the parallel arrangement of certain mineral grains that gives the rock a striped appearance. Marble synonyms marble pronunciation marble translation english dictionary definition of marble.

Marble is made by regional metamorphism of limestone or dolomite rock causing their microscopic grains to combine into larger crystals. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. 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.

In this hand specimen of vermont marble the crystals are small. 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. A hard crystalline or granular metamorphic limestone white or variously colored and sometimes streaked or mottled which can take a high polish. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.