Stone Size:20mmx30mm. Material: natural stone. Since the stones are all natural, the size and shape will vary. Best for healing, chakras balancing , positive energy, meditation, sound sleep, gift and many more applications. The crystal perfect for your home décor needs and table centerpieces. Looks amazing on your coffee table, nightstand, garden or pretty much anywhere. Easy to carry, perfect to hold in hands for relaxation or anxiety relief, enhance meditation. Our crystals are 100% genuine, so they do vary in color and clarity. You won't necessarily receive the exact deep that are featured in our images crystals.