trigonal
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
tourmaline
ck_admin
March 24, 2021
Its name comes from Sri Lanka, Ceylon, where it was called “tourmali” or “torra molli”, stone attracting ashes, it is considered as a colored zircon. It was not until 1703 that the Dutch brought it to Europe. It was identified by Buffon in 1759. It
sturmanite
ck_admin
March 24, 2021
It honors the name of the Canadian mineralogist B. Darko Sturman.
spherocobaltite
ck_admin
March 24, 2021
Its name comes from the Greek “sphaira” for sphere and from its composition with cobalt, which gives it its color, this is a rare stone. It’a a Cobalt Carbonate that is often wrongly called “cobaltoan calcite” Cobaltoan calcite chemically is a pink calcite owed to
smithsonite
ck_admin
March 24, 2021
Name honoring James Smithson (1765-1829), founder of the Smithsonian Institution in Washington (USA). It is also called bonamite.
