Some natural crystal crystals contain natural cotton wadding, ice cracks, mineral defects, and man-made hard injuries in the grinding process. Some Bracelet beads have tiny size differences. This is what we call the beauty of imperfection. Like a person, like him (her) will accept his (her) shortcomings, no one is perfect, let alone from millions of years ago. Please understand and love natural crystal. I hope every crystal that belongs to you can bring you good luck.