Economy in building stones
Today, the construction stone industry is rapidly growing and developing as an important economic industry in the world.
One of the most important minerals available is all kinds of decorative stone mines, with more than 3.7 billion tons stored, Iran is among the top ten countries with all kinds of decorative stone reserves.
China is known as the largest producer, importer and exporter of building stone in the world.
Iran is one of the few stone producing countries in the world, where about 10 million tons of different types of stones are mined every year.
Iran's share of the import of worked and unworked construction and decorative stones in the period of 2006-2012 is only 29%.
China, with a share of 18.61%, has been the largest importer of construction and decorative stones during the period.
After China, Singapore, America, Korea, and Germany are among the largest importers of worked and unworked building and training stones.
Extraction
One of the most important determining factors in the economic efficiency of decorative stones is extraction methods and technology; The countries that benefit from a high share in the world markets have high technology in extraction.
Today, the common methods of extraction in major countries are:
The method of making holes using pars and wedges and jacks, using steel wire cutters, using diamond cutting machines, using groovers and using flame, among which the most economical method is using diamond wire cutters and parallel holes.
About