![imperial jade from Burma cut in cabochon](https://www.patrickvoillot.com/wp-content/uploads/2021/03/jade-imperial-birmanie147.png)
Gemini
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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![imperial jade from Burma cut in cabochon](https://www.patrickvoillot.com/wp-content/uploads/2021/03/jade-imperial-birmanie147.png)
![pink fluorite from Brazil cushion cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/fluorite-rose-taille-coussin-bresil176.png)
![exceptional blue cut euclase from Colombia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/euclase-taille-emeraude-colombie178.png)
![emerald from Muzo in Colombia emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/emeraude-taille-emeraude-muzo-colombie183.png)
emerald
This is the green variety of beryl, the more valuable because of its unparalleled color, its name comes from the Greek “smaragdos” derived from an ancient Semitic word meaning “shining”. This is one of the gems most sought after, when the green the more sustained
![oval cut kyanite from Nepal](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cyanite-ovale-nepal197.png)
kyanite
Its name recalls its dominant color : blue in Greek (cyan). Sometimes colorless, but generally blue to bluish green, this gemstone has a hardness ranging, with its texture in plans, from 4.5 (direction of elongation) at 6 to 7 (perpendicular to the elongation). It also
![cushion cut iolite from India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cordierite-iolite-inde202.png)
iolite
It was also known as “dichroïte” (because of its strong dichroism) or “iolite” (because of its purple color), the anglo-saxons still call it by that name. It honors the name of the French geologist Cordier, Professor at the National Museum of Natural History in Paris.