![calcite from Russia emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/calcite-taille-emeraude-russie223.png)
Scorpio
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
Categories
![calcite from Russia emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/calcite-taille-emeraude-russie223.png)
![brasilianite from Brazil emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/brasilianite-taille-emeraude-bresil229.png)
brazilianite
ck_admin
March 24, 2021
It is its discovery near the town of Conseilheira Pena, in Minas Gerais (Brazil) in 1945 by Pough, which gave its name (Brazil is written Brasil in Brazilian).
![petrified wood from France](https://www.patrickvoillot.com/wp-content/uploads/2021/03/bois-silicifie-france232.png)
petrified wood
ck_admin
March 24, 2021
This is a fossilized wood dating back 200 million years, all parts of a trunk or branches have been silicified, that is to say that the organic components have been gradually replaced by silica in the form of jasper, chalcedony, or more rarely opal, there
![heliodore crystal of Madagascar](https://www.patrickvoillot.com/wp-content/uploads/2021/03/beryl-heliodore-cristal-madagascar236.png)
![yellow baryte from Italia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/baryte-taille-fantaisie-jaune-italie240.png)
![axinite from Brazil navette cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/axinite-navette-bresil243.png)