A Good Size Shungite Tumblestone.  Size approx 20mm - 30mm. 
Each crystal weighs approx 10-20g.  Stones sold individually.
Shungite is a carbon-rich stone that's believed to reduce inflammation, oxidative stress, and EMF exposure. Some also claim it can purify water and relieve emotional stress.
Includes a handmade protective pouch and information card. Choice of protective pouches available.