indistinct
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
legrandite
ck_admin
March 24, 2021
Identified in 1932 by Drugman and Hey, its name honors the Belgian mining engineer, Legrand.
lazurite
ck_admin
March 24, 2021
Discovered in 1890, its name comes from the Persian “Lazhward” which means blue. This is the main component of lapis lazuli, that gives it its beautiful ultramarine blue color. Pure crushed lazurite gives the blue pigment used since antiquity. The Egyptians went to Afghanistan to
lazulite
ck_admin
March 24, 2021
Not to be confused with lazurite, the main constituent of lapis lazuli. Lazulite is also called Klaprothite, in honor of the German mineralogist Klaproth (1743-1817) who discovered titanium and uranium, and described this stone. The name fell into disuse but it would avoid confusion between
hydroxylherderite
ck_admin
March 24, 2021
Its name honors Siegmund August Wolfgang von Herder (1776-1838) who identified it. It is found associated with herderite, besides many specimens called herderite are actually of hydroxylherderite.
hydroxyapatite
ck_admin
March 24, 2021
As for the apatite, its name derives from the Greek to indicate that the apatite has often been confused with other gems, plus the mention of “hydroxy”added . This is a major constituent of bones and teeth.There is a very dark green variety rich in
