Volcanic potpourri luxe - lava rock essential oil diffuser (scented)Add 6 10 drops of essential oil to the natural Lava and Obsidian rocks The porous Lava soaks up the oil, and slowly releases the lovely aroma into your room Elegant, long lasting and reusable, no part of this essential oil diffuser gets thrown away Makes a great new house gift idea Essential oils can help you to relax, or invigorate when you need a lift Crystal healers use Lava and Obsidian stones to provide themselves with strength and positivity