I use a mined salt from Utah called "Realsalt"tm I am not sure if it is available in your neck of the woods. Seems that is such a salty place as OZ there should be a nice unrefined "mineral packed" salt available. Try a healthfood store. If it is white and dry it has probably been stripped of the minerals. I don't feel like paying an arm and a leg for the "celtic salt" with it's claims. Realsalt was reasonable and turned my health around in conjunction with proper water amounts as stated in the watercure.
RealSalt: Gourmet Sea Salt Kosher Salt All Natural Salt
this one tells about the black salt...
Sea Salt – Guide
