As for Maracas, that's a world-class orebody with a resource grade of 1.27% V2O5 and a proposed mill feed head grade of 1.94% V2O5. Compare with windimurra's 0.47%. I heard their concentrate grade is 3.0% V2O5 - compare Windimurra's 1.2%.
The waste dumps at Maracas will have a higher head grade than the Windimurra orebody.