![wulfenite from U.S. square cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/wulfenite-taille-carree-usa32.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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![wulfenite from U.S. square cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/wulfenite-taille-carree-usa32.png)
![wolframite emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/wolframite-taille-emeraude23.png)
wolframite
Its name comes from the german, “ wolfram” being the name of tungsten, which is its main component. The hubnerite variety is rich in manganese, of a rather red color, transparent and in slices, it was named after the german Adolph Huebner. The ferberite variety
![emerald cut willemite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/willemite-taille-emeraude25.png)
![cabochon of ussingite from Russia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/ussingite-russie35.png)
![tugtupite cabochon from Greenland](https://www.patrickvoillot.com/wp-content/uploads/2021/03/tugtupite-cabochon-groenland39.png)
tugtupite
Mineral discovered in 1960 simultaneously in the Kola Peninsula (Russia) and south of Greenland, its name comes from an Inuit word meaning ” Reindeer blood ” (“tugtup” means reindeer in Eskimo). Stone of a beautiful color. Without light it loses its color, and after returning
![rubellite variety of tourmaline from Brazil](https://www.patrickvoillot.com/wp-content/uploads/2021/03/tourmaline-rose-taillee-bresil43.png)
tourmaline
Its name comes from Sri Lanka, Ceylon, where it was called “tourmali” or “torra molli”, stone attracting ashes, it is considered as a colored zircon. It was not until 1703 that the Dutch brought it to Europe. It was identified by Buffon in 1759. It