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The stone types that are generally known are classical
marble,
travertine, onyx and granite.
Out of these, marble is composed of totally crystallized stones with metamorphism.
They are usually white or light gray in color.
They contain lots of unique materials in their composition.
Onyx and travertine only contain CaCO3 in their structure. Travertines are easily embroidered because they have spaces varying from the size of the top of a needle to a couple of cm. and takes to polish well.
Granite is a marble with magmatic origin. Other examples can be given to this type such as andesite, dacite, syenite, basalt, diabase, gabbro and serpentinite
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