triclinic
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
astrophyllite
ck_admin
March 24, 2021
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.
amblygonite
ck_admin
March 24, 2021
The German mineralogist Breithaupt described and identified it in 1817. Its name comes from the angle formed at its cleavage, in Greek “Amblus” meaning “obtuse” and “Gonia” which means “angle”, as opposed to scapolite with which it was often confused. It forms a continuous series
