Howlite and lava stone essential oil diffuser bracelet. Apply a drop of your favorite essential oil on your bracelet, and the lava stone beads will carry your favorite scent with you! White and crisp faceted howlite and matte silver titanium coated lava make this a beautiful aromatherapy bracelet! Heal your senses with this cool essential oil diffuser bracelet!Lava stone comes from cooled lava, as it comes from the center of the earth, it is a strong grounding stone, that gives energy and strength. Howliteis a very calming stone used to relieve stress of all kind.