![purpurite from United States](https://www.patrickvoillot.com/wp-content/uploads/2021/03/purpurite-brute-etats-unis87.png)
definite
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 …
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![purpurite from United States](https://www.patrickvoillot.com/wp-content/uploads/2021/03/purpurite-brute-etats-unis87.png)
![neptunite emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/neptunite-taille-emeraude114.png)
![emerald cut mellite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/mellite-taille-emeraude123.png)
![legrandite emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/legrandite-taille-emeraude134.png)
legrandite
ck_admin
March 24, 2021
Identified in 1932 by Drugman and Hey, its name honors the Belgian mining engineer, Legrand.
![pink kunzite from Patroke in Afghanistan trillion cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/kunzite-patroke-afghanistan142.png)
![emerald cut hiddenite from Brazil](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hiddenite-taille-emeraude-bresil157.png)
hiddenite
ck_admin
March 24, 2021
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