إمبالا البلاتين الشواغر الألغام
التعدين إمدادات جوهانسبرغ. The Toxic Landscape of Johannesburg''s Gold Mines WIRED. Jun 18, 2014 More than a century of gold mining has left towering piles of bleached mine waste, known as "tailings," all over Johannesburg''s landscape. far it hasn''t come into the main city''s .