![parisite from Colombia oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/parisite-ovale-colombie104.png)
splintery
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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![parisite from Colombia oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/parisite-ovale-colombie104.png)
![opal from Australia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/opale-cabochon-australie110.png)
opal
Its name comes from the Sanskrit “upala” which means precious stone, or the Greek “opallios” and Latin “opalos”. It is distinguished by iridescent reflections depending on the angle of vision, recalling the rainbow, who gave the term “opalescent”. Hydrated silica gel, it does not crystallize.
![black obsidian from Ascension Island](https://www.patrickvoillot.com/wp-content/uploads/2021/03/obsidienne-noire-ile-ascension113.png)
obsidian
Its name comes, according to Pliny, from Obsidius who brought it from Ethiopia, which would have led the Romans to call it “obsidius lapis”. From the seventeenth century we find the names of hyalopsite, mountain mahogany, Iceland black agate, mirror of the Incas, gallinaceous stone
![microlite triangle cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/microlite-triangle121.png)
![meliphanite crystal from Norway](https://www.patrickvoillot.com/wp-content/uploads/2021/03/meliphanite-norvege124.png)
meliphanite
Discovered in 1852, its name comes from the Greek, “which resembles to honey” in connection with its honey-yellow color.
![yellow meionite from Madagascar](https://www.patrickvoillot.com/wp-content/uploads/2021/03/meionite-taille-emeraude-madagascar125.png)