Columbianite Obsidian Psuedo-Tektite 1.5"x 1" Bowl Clean the stone with a

Clean the stone with a soft cloth

which can cause the silicon dioxide molecules in quartz to rearrange and create new minerals

Each coaster measures individually 3

Combined together

These wine stoppers are designed to keep the wine fresh by sealing the bottle and prevent oxidation

Columbianite Obsidian Psuedo-Tektite 1.5"x 1" Bowl Clean the stone with aColumbianite is the name given to psude tektites from Columbia. Colombianite, also known as Piedra Rayo or Stone of Light, is an ancient form of Obsidian (Black) glass that closely resembles a Tektite (hence its Pseudotektie classification) due to their glassy appearance. They have survived an incredible 30 million years from their origins of ancestral volcanic parents in the geologic Garden of Eden. (Obsidian is a very unstable mineral and rarely