Well ok what do we know so far?
It's in Australia.
It's in Western Australia (the state, not just the western bit)
and a new clue, it's in the north of W.A.
Anymore and i reckon it's too easy...surely someone can guess what it is at least...
Finally! I also know it as "work" but we won't discuss that here hahaha
It's famous for: Argyle is the world's primary source of rare pink diamonds, which have become the company's signature stone.