orthorhombic
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
peridot
ck_admin
March 24, 2021
Formerly this mineral was called chrysolite, although the “chrysolitus” of Pliny was probably referred to topaz, a “yellow stone”, a “golden stone”. Also called ” stones of knights ” because it would be the crusaders who brought peridot from the east to europe where it
palygorskite
ck_admin
March 24, 2021
Identified in 1862, its name comes from that of a deposit in the Urals in Russia. Sometimes called “angel skin opal” because of its resemblance, but it’s not an opal.
marcasite
ck_admin
March 24, 2021
Identified in 1845 by von Raidinger, it was found being different from pyrite by René-Just Haüy in the early nineteenth century. Its name comes from either the Arabic or Moorish to signify that it has a metallic color yellow. This is an iron sulphide containing
