![rubies from Sri lanka oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/rubis-ovale-sri-lanka75.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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![rubies from Sri lanka oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/rubis-ovale-sri-lanka75.png)
![pyroximangite fancy cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pyroxmangite-taille-fantaisie81.png)
pyroxmangite
ck_admin
March 24, 2021
It takes its name from its resemblance to the pyroxene and its manganese content. Rhodonite has the same composition as the pyroxmangite formed in conditions of higher pressure and temperature.
![pyrope garnet from Africa oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pyrope-taille-ovale-afrique83.png)
![emerald cut pyrargyrite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pyrargyrite-taille-emeraude86.png)
pyrargyrite
ck_admin
March 24, 2021
Described in 1831 by Glocker, its name comes from the Greek “pyros” meaning fire and “Argyros” for money. It is a silver salt of a fire red color.
![emerald cut proustite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/proustite-taille-emeraude88.png)
![cut painite from Mogok in Burma](https://www.patrickvoillot.com/wp-content/uploads/2021/03/painite-taille-fantaisie-mogok-birmanie-myanmar107.png)