Je vous emmène à travers mes vidéos découvrir mon expérience acquise depuis plus de 30 ans a silloner le globe entier à la recherche de pierres précieuses, de rencontre mémorables mais aussi de difficulté parfois …
Identified in 1825 in Bohemia in iron deposits, its name comes from the Greek “kakos”, for bad, and “xenos”, for guest or stranger to indicate that its presence in the iron ore was not appreciated: this phosphate makes the metal iron ore work, harder. The
Discovered in 1838 in Mexico, its name comes from its composition, rich in vanadium.
Discovered in Sweden in 1878, its name comes from the Greek “thaumasion” which means surprising, in relation to its amazing chemical composition.
