Mine

Mining in Iran is still under development, yet the country is one of the most important mineral producers in the world, ranked among 15 major mineral-rich countries,holding some 68 types of minerals, 37 billion tonnes of proven reserves and more than 57 billion tonnes of potential reserves worth $770 billion in 2014. Mineral production contributes only 0.6 per cent to the country's GDP.[5] Add other mining-related industries and this figure increases to just four per cent (2005). Many factors have contributed to this, namely lack of suitable infrastructure, legal barriers, exploration difficulties, and government control.
The most important mines in Iran include coal, metallic minerals, sand and gravel, chemical minerals and salt. Khorasan has the most operating mines in Iran. Other large deposits which mostly remain underdeveloped are zinc (world's largest), copper (world's ninth largest reserves in 2011, according to the managing director of National Iranian Copper Industries Company), iron (world's 12th largest in 2013 according to the US Geological Survey), uranium (world's tenth largest) and lead (world's eleventh largest). Iran with roughly 1% of the world's population holds more than 7% of the world's total mineral reserves