Obsidian is a deep black stone extracted from lava deposits. Obsidian is formed when lava is quickly cooled leaving a glassy lava rock. One of the darkest black stones formed on the planet that creates a mystic look for an inlay material. It sits right in the middle of the Mohs scale at a 5.5 Try out this new exotic inlay material in your next ring making adventure!

Purchase includes 1 gram of obsidian, roughly enhances 5 rings.