Stone tools are still used for surgery: https://surgicaltools.co.uk/catalogue/blades-knives/scalpels-blades-knives/10110-07-obsidian-scalpels/ https://surgicalt

Stone tools are still used for surgery: https://surgicaltools.co.uk/catalogue/blades-knives/scalpels-blades-knives/10110-07-obsidian-scalpels/ https://surgicaltools.co.uk/catalogue/blades-knives/scalpels...