Shungite | Tumbled Stone | 100-150 gm
These tumbled shungite stones are rather like natural river pebbles. The average weight is 100-150 gm per stone.
The shape and size of individual shungite stones will always differ. Shungite contains inclusions of quartz (white) and pyrite (yellow). Shungite stones are pre-washed to avoid staining however rubbing a stone will leave a black carbon trace.