In India, quarries for exported natural stones are concentrated mainly in two regions:
There are about 100 provenances where natural stones for the export are mined. This are small areas (e.g. a hill) where the same type of natural stones can be found. The mining can be done by different lessees or owners. One provenance can be subdivided in about up to 12 mining sections.
In China, quarries for exported natural stones are concentrated mainly in two regions, too:
Granites are of great economic importance in the construction sector because they are highly resistant, very hard and weatherproof and easy to grind and polish. They are used:
Marble can be used for a large variety of purposes. It is often used:
Sandstone has had very varied uses since ancient times:
The less resistant clayey sandstones are often used for sculpting. The more resistant quartziferous varieties are particularly suitable for: