![black obsidian from Ascension Island](https://www.patrickvoillot.com/wp-content/uploads/2021/03/obsidienne-noire-ile-ascension113.png)
Aquarius
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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![black obsidian from Ascension Island](https://www.patrickvoillot.com/wp-content/uploads/2021/03/obsidienne-noire-ile-ascension113.png)
![nodule of malachite from Zaire](https://www.patrickvoillot.com/wp-content/uploads/2021/03/malachite-nodule-zaire129.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
![faceted hematite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hematite-ovale162.png)
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![drop cabochon of charoite from Russia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/charoite-cabochon-russie211.png)