![oval cut xenotime](https://www.patrickvoillot.com/wp-content/uploads/2021/03/xenotime-ovale.png)
definite
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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![oval cut xenotime](https://www.patrickvoillot.com/wp-content/uploads/2021/03/xenotime-ovale.png)
![pink vayrynenite from Pakistan square cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/varynenite-pakistan18.png)
vayrynenite
Its name honors the Finnish mineralogist Väyrynen who identified it in Finland but the pink samples and gems come from the Paproke mine in Afghanistan.
![aenigmatite crystal from Greenland](https://www.patrickvoillot.com/wp-content/uploads/2021/03/aenigmatite-cristal-groenland1.png)
aenigmatite
Discovered in 1865 its name comes from Greek showing that its chemical formula was a real “mystery” to solve.
![cut augite](https://www.patrickvoillot.com/wp-content/uploads/2021/03/acmite-augite0.png)
augite
Its name, coming from Latin, was given by Werner and it means bright because the surfaces of its divisions are very bright. Amongst the pyroxenes, augite is a ferromagnesian silicate low in calcium. The fassaite variety is low in iron, the jeffersonite variety is rich
![triplite from Pakistan oval cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/triplite-pakistan40.png)
triplite
Its name comes from the Greek “triplos” for triple, as it has cleavages in three directions, it forms a series with the zwieselite, which is the fluorinated pole. It is found in granitic pegmatites and it was identified in the Chanteloube, Haute-Vienne in France. The
![pink spherocobaltite from Morocco](https://www.patrickvoillot.com/wp-content/uploads/2021/03/spherocobaltite-maroc58.png)
spherocobaltite
Its name comes from the Greek “sphaira” for sphere and from its composition with cobalt, which gives it its color, this is a rare stone. It’a a Cobalt Carbonate that is often wrongly called “cobaltoan calcite” Cobaltoan calcite chemically is a pink calcite owed to