vitreous
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 …
actualités
orthoclase
ck_admin
March 24, 2021
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
opal
ck_admin
March 24, 2021
Its name comes from the Sanskrit “upala” which means precious stone, or the Greek “opallios” and Latin “opalos”. It is distinguished by iridescent reflections depending on the angle of vision, recalling the rainbow, who gave the term “opalescent”. Hydrated silica gel, it does not crystallize.
