![cushion cut iolite from India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cordierite-iolite-inde202.png)
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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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![cushion cut iolite from India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cordierite-iolite-inde202.png)
![cabochon of silicious chrysocolla](https://www.patrickvoillot.com/wp-content/uploads/2021/03/chrysocolle-siliceux-bleu-cabochon-usa207.png)
chrysocolla
ck_admin
March 24, 2021
Its name, of the masculine gender, comes from the Greek “khrusos” : gold, and “kholla”: glue, referring to the fact that this mineral was used powdered to solder gold. It has been called “the little sister of turquoise” because of its alikeness. The rock of
![ceruleite cabochon cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/ceruleite-cabochon215.png)
![blue celestite of Madagascar emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/celestite-taille-emeraude-madagascar216.png)
![blue carletonite of Mont St-Hilaire in Canada](https://www.patrickvoillot.com/wp-content/uploads/2021/03/carletonite-mont-saint-hilaire-canada221.png)
carletonite
ck_admin
March 24, 2021
Discovered at Mont Saint-Hilaire in Canada by a team of the Carlton University in Ottawa, it was named after it.
![twinned boleite crystals from Boleo, Mexico](https://www.patrickvoillot.com/wp-content/uploads/2021/03/boleite-cristaux-boleo-mexique231.png)