Even though their chemical nature is almost similar to each other there are many differences between limestone and marble in the way they originate and the physical characteristics they possess.
Limestone changes to marble.
Limestone changes into marble due to its metamorphosis.
Limestone vs marble.
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Stone surface material may be lost all over or only in spots that are more reactive.
Before metamorphism the calcite in the limestone is often in the form of lithified fossil material and biological debris.
Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.
Both limestone and marble are types of rock made of calcium carbonate residues.
During metamorphism this calcite recrystallizes and the texture of the rock changes.
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It is composed primarily of the mineral calcite caco3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite.
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Marble is formed from limestone when the limestone is affected by heat and high pressure during a process known as metamorphism.
Marble actually metamorphoses to limestone from a major change.
The pressure of rocks above marble exert that much of pressure that it undergoes a complete physical change.
During metamorphism the calcite limestone recrystallizes forming the interlocking calcite crystals that make up the marble.
When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves.
Some marble also forms by contact metamorphism when a hot magma body heats adjacent limestone or dolostone.
The marble rock is subjected to intense heat in order to change its form.
In exposed areas of buildings and statues we see roughened surfaces removal of material and loss of carved details.
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