hello dredgemaster If I remember right, in 2010 they estimated to get 50 kgs or even 100 lbs (round 5%) from 1 t of raw feed. Maybe you have to double the amount of raw feed to get one tonne of black sands.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.