These treatises on precious stones present the inventory of the jewels and their medical and magical qualities. This volume gives the translation of five treatises dating from the 12th to the 14th century, thus giving access to these difficult texts so that their importance for the history of science and for social history of mentalities may be appreciated.
CLIL theme: 4027 -- SCIENCES HUMAINES ET SOCIALES, LETTRES -- Lettres et Sciences du langage -- Lettres -- Etudes littéraires générales et thématiques
