I'm trying to make sense of the preliminary leaching results....

I'm trying to make sense of the preliminary leaching results. I'm a layperson in such matters. But I've been researching as best I can and comparing Narraburra to similar projects.

PH2 seems fine (perhaps even good!). From what I can gather, generally, anything PH1 or higher is considered acceptable (I.e., can be economic) in most cases.

But I'm a little concerned with the duration; 24 hours seems an unusually long period of time for leaching (2-6 hours seems to be standard).

Also, I'm not sure how big a deal the 50ºC temperature requirement is. Ideally, the leaching would occur at ambient temperature. I'm not sure how the higher temperature requirement will affect the economics of the operation.

Obviously, these are only preliminary results. We will need to wait for more detailed information to be released over the coming weeks and months. But I'd still like to gain a better understanding of the potential economic viability of the deposit based on the information that GRL has provided thus far.



@setfire2thehive, I've been reading your posts on other threads, and you appear to be very knowledgeable on the REE leaching process. Please, may I presume on you to opine on the recent GRL maiden metallurgical results.