All Shungite lovers please read this review! I’ve ordered shungite from other companies and I must say Heka naturals is the best! Quality, and service exceeds standards. I knew right away when my product arrived that this shungite is very special elite noble shungite. With a high carbon content I put some to purify my gallon of water and after a couple of hours my water was VERY SMOOTH AND SOFT! water quality is important elite shungite is a gem for this purpose! Lastly I’m only ordering from Heka Naturals from now on.. check out their pyramids they’re AMAZING!