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 …
Identified in 1825 in Bohemia in iron deposits, its name comes from the Greek “kakos”, for bad, and “xenos”, for guest or stranger to indicate that its presence in the iron ore was not appreciated: this phosphate makes the metal iron ore work, harder. The
Identified by Berzelius its name is related to the Greek word “xenos”, meaning stranger, because the crystals were not discovered until later and it was long called Cenotime. It forms a series with the chernovite and is a rare earth phosphate, more often Yttrium but
Its name honors the Finnish mineralogist Väyrynen who identified it in Finland but the pink samples and gems come from the Paproke mine in Afghanistan.
Discovered in 1865 its name comes from Greek showing that its chemical formula was a real “mystery” to solve.
Its name comes from the term jade. It is the nineteenth century, in 1863, that jadeite was differentiated from nephritis. This is a pyroxene resulting from metamorphism of serpentines high in sodium. Before the nineteenth century both jadeite and nephrite were called with the generic
