Just heard an interesting story[1] on NPR recently about scientists who were studying teeth in medieval skeletons and found Lapis Lazuli in a woman's teeth. Thi

Just heard an interesting story[1] on NPR recently about scientists who were studying teeth in medieval skeletons and found Lapis Lazuli in a woman's teeth. This led them to the hypothesis that she was a scribe and that the residue in her teeth came from her putting a paint brush in her mouth. The upshot of the article is about rethinking the traditional notion that all/most scribes in the middle ages were merry old monks. But they do describe what Lapis Lazuli is and what it was used for back then. [1] https://www.npr.org/sections/health-shots/2019/01/09/683283982/a-blue-clue-in-medieval-teeth-may-bespeak-a-womans-artistry-circa-1-000-a-d https://www.npr.org/sections/health-shots/2019/01/09/6832839...