Thank you for viewing! (^-^) This is a very delicate and beautiful blue kyanite. It contains silica well, so it's not very fragile. Natural stone: Kyanite Bead size: Approximately 7.7mm Discounts available for multiple purchases! This is handmade. I try to make them carefully, but they are not comparable to mass-produced items. I hope you will handle them gently. Since they are natural stones, there may be cracks and inclusions. I have several cats. Please refrain from purchasing if you are concerned. ・I am studying how to polish natural minerals such as Larimar. My polishing skills are still developing, but thank you for your support (*´ー｀*) Please read my profile if you have a moment ☆彡