![emerald cut proustite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/proustite-taille-emeraude88.png)
conchoidal
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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![emerald cut proustite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/proustite-taille-emeraude88.png)
![oval cut powellite from India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/powellite-taille-ovale-inde90.png)
![square cut poudrettite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/poudrettite-carree91.png)
poudretteite
It owes its name to “Poudrette Quarry” in Mont Saint-Hilaire in Canada where it was discovered. The deep pink gem variety can be cut and was not discovered until 2001.
![emerald cut pollucite from afghanistan](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pollucite-afghanistan92.png)
![phosphophyllite oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/phosphophyllite-ovale95.png)
phosphophyllite
Its name recalls that it is a phosphate, and its cleavage causes leaves: it comes from the Greek “Phillon” meaning leaf. It’s a stone sought after for its beautiful bluish green color.
![phosgenite emerald cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/phosgenite-taille-emeraude96.png)
phosgenite
Discovered in England, its name comes from the Greek “phos” meaning “light” and “genan” – “which leads “, in connection with its lights characteristic, was given by Haidinger. Karsten, who had described it in the early nineteenth century had named it hornblei.