brown
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
greenockite
ck_admin
March 24, 2021
Its name honors Lord Greenock, from Greenock in Scotland where it was discovered in 1840.
gadolinite
ck_admin
March 24, 2021
Appointed in 1800 in honor of the Finnish mineralogist Johan Gadolin (1760-1852) who isolated the Yttrium element in 1797. This rare earth is used to imitate the diamond, synthetic zirconia oxide, to stabilize it in a cubic form at atmosphere temperature. Gadolinium is one of
friedelite
ck_admin
March 24, 2021
Its name honors the French chemist and mineralogist Charles Friedel (1832-1899).
