LAVA ROCK is one of the oldest and most abundant stones in the world.  It comes from an erupting volcano and when it cools it becomes porous and black.   This makes the lava stone a great carrier for essential oil aromatherapy jewelry!  Since Lava stones carry energetic qualities they have been used for their healing, calming and grounding properties.  Combined with an essential oil, this makes the perfect pair!  You can look and smell good at the same time!