※Please note that there is no specific scientific evidence to prove the therapeutic effects of stones, but gemstone therapy meditation may induce a placebo effect that helps you relax the mind. Natural Crackle Agate Beads Strands.Natural Crackle Agate Beads Strands, Dyed, Faceted, Round, ColorfulSize: about 8mm in diameter, hole: 1mm, about 49pcs/strand, 15. This includes emotional and physical balance.