What Makes A Marble Rock

Many colors of marble.

What makes a marble rock.

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Commercially it includes all decorative calcium rich rocks that can be polished as well as certain serpentines verd antiques. Marble has many unique properties that make it a valuable rock in many different industries. Geologists use the term marble to refer to metamorphosed limestone.

The taj mahal in india is made entirely of marble. Marble usually originates as limestone or dolomite. Marble is a type of metamorphic rock. The variety of colours exhibited by marble are a consequence of minor amounts of impurities being incorporated with the.

Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble may be foliated. Marble forms under such conditions because the calcite forming the limestone recrystallises forming a denser rock consisting of roughly equigranular calcite crystals. Ashford black marble is a very fine grained sedimentary rock and is not a true marble in the geological sense. Marble marble is a metamorphic rock formed when limestone is exposed to high temperatures and pressures.

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. In this hand specimen of vermont marble the crystals are small. The photographs and captions below illustrate just a few of its varied uses. Petrographically marbles are massive rather than thin layered and consist of a.

Marble granular limestone or dolomite i e rock composed of calcium magnesium carbonate that has been recrystallized under the influence of heat pressure and aqueous solutions. This type of metamorphic rock consists of recrystallized calcite in limestone or dolomite in dolomite rock. 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. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat.

Marble is commonly used for sculpture and as a building material. It can be cut and inlaid with other decorative stones and minerals using a. Marble has been used to make statues and provide flooring since ancient times. 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.

Marble is made by regional metamorphism of limestone or dolomite rock causing their microscopic grains to combine into larger crystals.