Le parfaict ioaillier, ou, Histoire des pierreries : où sont amplement descrites leur naissance, iuste prix, moyen de les cognoistre, & se garder des contre-faites, facultez medecinales, & proprietez curieuses
A 1644 Lyon gemmology treatise in French by Anselmus de Boodt, revised by Jean Bachou and Adrianus Tollius, for jewellers and collectors, describing how gems form, their true value, how to recognise counterfeits, and their medicinal and curious properties. The woodcut plates show stones drawn in outline with dense hatching, cross-section and multiple views of each specimen, which a designer might borrow for engraved gem motifs, pebble-like forms, or stippled and striated surface textures.
