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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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pumpellyite from Lake Superior in Michigan in the U.S.

pumpellyite

Rare mineral found in the Carriere de la fleche, at Bertrix in the Ardennes, Belgium. We must speak of “pumpellyites” because there are some in which magnesium dominates, in others it is aluminum and yet in others it is iron, as shown here for this

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prehnite crystals from India

prehnite

Named in honor of the Dutch collector and Colonel H. Van Prehn who discovered it. Most prehnites used as gems come from Australia.

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emerald cut pollucite from afghanistan

pollucite

It was discovered in 1846 on the island of Elba, Italy, and named pollucite, from the Greek name Pollux (mythological figure, brother of Castor), since this mineral is often associated in nature with petalite, which was then called the “castorite”.

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pear cabochon of blue pietersite from China

pietersite

Discovered in 1962 by Pieters in Namibia, this breach consists of an hawk eye and a tiger’s eye (crocidolite). Subsequently, it was discovered in China a rock quite close in appearance to Pietersite, which would be a amphibole rich in torendrikite instead of crocidolite. This

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moonstone from Sri Lanka cut in cabochon

moonstone

The moonstone is composed of alkaline feldspar, mainly potassium in other words orthoclase, in its variety “adularia”. This is actually a microperthite resulting from a microscopic phase separation of platelets from a sodium feldspar, the albite, in the orthoclase during the cooling of the mixture

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phosgenite emerald cut

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.

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