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 …
Discovered in 1854, its name comes from the Greek “astron” – star- and “phyllon” – leaf- illustrating the shape of its starry groups of acicular crystals. In gemology, it is known as inclusions in quartz crystals and can be confused with rutile.
Identified by Werner in 1804, its name comes from the Greek “anhydros” which means without water, as opposed to gypsum, which contains it. A blue variety that comes from Peru is called Angelite. Another variety from Italy (Costa Volpino in Lombardy) is called vulpinite.
Andradite: this variety of garnet has been described and identified by Dana, its name is a tribute to a Brazilian mineralogist Jose Bonifacio de Andrada e Silva (1763-1838). Mélanite : black titanoan variety, its name comes from the Greek “black”. Topazolite : yellow variety of
