Possibly the world's largest hard-rock spodumene resource, page-2427

You could try looking at core images from companies that have a measured JORC classified resource such as PLS for a comparison image. I have studied geo at UNSW but am not practising. Obviously a photo does not do it justice and a full lab analysis is required, but generally speaking we are looking for the "brown stuff " in the core samples and if that is a good indication then AVZ has bucket loads of the stuff IMO.