Tin mining and processing methods - ITRITin mining and processing methods. Hard-rock mining. Hard-rock underground mining is predominant in China,. South America and Australia, although there.beneficiation of tin mineral,Potential of Tin Tailings an Industrial Waste for Refractory MaterialsThe potential of using Tin tailings industrial waste, from the mineral . After the beneficiation of Tin Ore to obtained Tin concentrate, Tin tailings are collected.