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 …
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.
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
Discovered in 1855, it owes its name to the Greek “hyalos” – glass-, and “Phanos” – which has the appearance.
Very common mineral, its name comes from the German “horn” horn “blenden” dazzle. There are many varieties depending on the content of iron, magnesium, calcium etc …
Discovered in 1913, its name honors H.H.Hodgkinson of the Franklin Mine in New Jersey, United States, where it was discovered.
This is a green variety, colored by chromium, of spodumene which is part of the pyroxene group, although green spodumene without chromium are also called Hiddenite. Its name honors W. E. Hidden, who discovered it in 1879 in the U.S. (Alexander County, North Carolina United
