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 …
Described by Breithaupt in 1823, its name comes from the Greek Greek “orthos” meaning “straight fracture“, because it has the characteristic to cleave in two orthogonal planes. Named at the beginning orthoclase, orthose, its french name, was given lately by René Just Haüy. In its
Its name comes, according to Pliny, from Obsidius who brought it from Ethiopia, which would have led the Romans to call it “obsidius lapis”. From the seventeenth century we find the names of hyalopsite, mountain mahogany, Iceland black agate, mirror of the Incas, gallinaceous stone
Discovered in 1852, its name comes from the Greek, “which resembles to honey” in connection with its honey-yellow color.
