here You can find more information about this machine(Feldspar Mining In Sri Lanka ... and/or minerals found in Gem Mine ... For Sale In Sri Lanka;
Mining in Afghanistan is controlled by the Ministry of Mines and Petroleum, which is headquartered in Kabul with regional offices in other parts of the country. Afghanistan has over 1400 mineral fields, containing barite, chromite, coal, copper, gold, iron ore, lead, natural gas, petroleum, precious and semiprecious stones, salt, sulfur, talc ...
President Maithripala Sirisena says he will not allow foreign companies to enter into gem mining industry in the country. "During the time I was the Common Candidate for the Presidential Election, the people requested me not to let the foreign companies mine gems in Sri Lanka.