White rabbit in fortified underground entrance.
Hmmmm
A little misleading. Deposits of substantial enough deposits of rare earths are rare.
China's proven deposits are substantial.
Difference between 40 g/ton and 170 g/ton.
Economic feasibility for hard rock and open pit mining.
Things change, though.
Gold as an example break even was 4 g/ton at 1,500/ oz.
Where's ES on the list of abbreviations?