Blue Apatite is a Seeker Buffer Crystal. Seeker Buffer crystals are used when one seeks to recenter themselves and to find a place of repose, and a place of balance. When your life is out of sorts, and demands are coming in from all directions, you can be pushed far away from where you want to be. Use a Seeker Buffer crystal to insulate yourself from external demands, temper shocks and add some emotional padding to your daily life. One crystal.