![sunstone form India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/feldspath-aventurine-pierre-de-soleil-inde103.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 …
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![sunstone form India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/feldspath-aventurine-pierre-de-soleil-inde103.png)
![oval cut peridot from Burma](https://www.patrickvoillot.com/wp-content/uploads/2021/03/peridot-taille-ovale-birmanie101.png)
peridot
Formerly this mineral was called chrysolite, although the “chrysolitus” of Pliny was probably referred to topaz, a “yellow stone”, a “golden stone”. Also called ” stones of knights ” because it would be the crusaders who brought peridot from the east to europe where it
![cut onyx](https://www.patrickvoillot.com/wp-content/uploads/2021/03/cabochon-noir112.png)
![marcassite in quartz cut in cabochon](https://www.patrickvoillot.com/wp-content/uploads/2021/03/marcassite-quartz-cabochon128.png)
marcasite
Identified in 1845 by von Raidinger, it was found being different from pyrite by René-Just Haüy in the early nineteenth century. Its name comes from either the Arabic or Moorish to signify that it has a metallic color yellow. This is an iron sulphide containing
![hessonite garnet from Sri Lanka](https://www.patrickvoillot.com/wp-content/uploads/2021/03/hessonite-sri-lanka168.png)
![cabochon of dumortierite from Africa](https://www.patrickvoillot.com/wp-content/uploads/2021/03/dumortierite-cabochon-afrique187.png)
dumortierite
Its name honors Eugene Dumortier, a paleontologist from Lyon (France )(1802-1873). It occurs most commonly as quartz inclusions, it is then called “blue aventurine”.