I think as others said the success of the portugal resource wouldnt only depend on the grade but more importantly on the size of the resource (pilgangoora has the biggest deposit of 100million tonnes + of ore at 1.25% lithium, Altura and many others seem to have some 25million tonnes at 1.20% lithium). It will depend on the constrained pit and how near to each others the spodumene rich ore is located for a an economic depsoit, but IMO anything less than 10million tonnes at 1.10% lithium wont be attractive to financiers. they need to define at least 15million or 20million tonnes for the project to have serious chances of getting developed into a mine, so wait and see.
