Keled Rocks: Elite Shungite 3.5 Oz 100g Detoxification Stone Russia Antioxidant, Structured Water Rare high-carbon Elite Shungite 92-98% pure carbon Quantity total: 1/4 lb Random crystals weight (One stone) 5-9 Gramm Our stones are selected manually, mechanically pre-cleaned without the use of chemistry, so that you get the best stones. Authenticity - certified stones extracted directly the Zazhoginsky mine From Karelia, Russia Keled Rocks - A premium brand of elite shungites stones you know and trust.