YJH Crystal Natural Engraved Blue Aventurine Pyramid Chakra Stone Palm Stone Healing Crystal Material:Blue Aventurine Weight Approximately:40 g(Size:35*35*30) Great little pyramid for use in meditation, healing, display, spiritual practice, chakra balancing, gridwork, and energy focus Excellent stone for numerous magical purposes This crystal is beneficial in overcoming insomnia, lessens migraines and headaches, and aids the eyesight