deposits mining 111 mining 18 mines (mining) 12 mining engineering 12 coal 10 history 8 hard coal 6 more ... mineral deposits 4 silver 4 economic growth 3 deep mining 3 brown coal 3 mine ventilation 3 mineral processing 3 briquettes 2 mine exploitation 2 geological survey 2 deposit geology 2 fuels (chemistry) 2 crude oil 2 simulation and modelling 2 coal seams 2 academic theses 2 pumps 2 safety of work 1 chemical preparation processes 1 precious stones 1 respiratory devices 1 mine transport 1 mine surveying 1 less ...