White Marble Chemical Composition

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White marble chemical composition.

Marble is made of calcium carbonate caco3 which is also what limestone is made from. The exact chemical composition of marble will greatly vary dependong on the location and the minerals or impurities present in the limestone during recrystallization. This specimen is a piece of white marble with a large red ruby crystal from afghanistan. Marble is often the host rock for corundum spinel and other gem minerals.

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. That means it is born from the transformation of a pre existing rock whose composition and structure underwent changes over the time caused by the intervention of different chemical and physical factors. 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. Typically marble is composed of the following major constituents.

38 42 lime cao 20 25 silica sio2 2 4 alumina al2o3 1 5 2 5 various oxides nao and mgo and 30 32. 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. Petrographically marbles are massive rather than thin layered and consist of a. Commercially it includes all decorative calcium rich rocks that can be polished as well as certain serpentines verd antiques.

Scientifically marble is a carbonate rock which originated from metamorphic genesis. Limestone crystals are much smaller than that of marble and limestone is much more porous. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat.