Polished Blue Obsidian Tumble Stone Crystal

You will received 1x Blue Obsidian picked out at random
Stones vary in size and colour, 
Size varies from 3 - 4 cm approx 

Blue Obsidian is a soft pale blue type of Obsidian, a silica rich volcanic rock, glassy in appearance and is rare in its natural form. ... The natural blue form of Obsidianstimulates the throat chakra so that one is able to freely express one's thoughts and feelings with clarity