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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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sliced polished nephrite from China

nephrite

This is a thick microcrystalline rock the of amphibole family, we can consider nephrite as a microcrystalline variety of ferrous actinolite-tremolite series. The majority of nephrites are composed mainly of actinolite. The white variety, known as” mutton fat “, is composed almost exclusively of tremolite,

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Imperial jade from Burma cut in cabochon

jadeite

Its name comes from the term jade. It is the nineteenth century, in 1863, that jadeite was differentiated from nephritis. This is a pyroxene resulting from metamorphism of serpentines high in sodium. Before the nineteenth century both jadeite and nephrite were called with the generic

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wavellite crystals from United States

wavellite

Discovered in 1805 in England, its name honors the English physician William Wavell (1750-1829).

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vivianite emerald cut

vivianite

Its name honors the British mineralogist J. G. Vivian. Colorless when fresh, it turns green blue, dark blue or black by partial oxidation of its iron. The crystals aggregates forming wheels come from Cameroon.

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vesuvianite from Kenia

vesuvianite

Its name comes from the Vesuvius (Italy) where it was discovered, it is also called vesuvienne, idocrase, wiluite (form the Wilui River in Yakutia, Russia). The californite variety, discovered in 1963 by the famous mineralogist Kunz, is a massive, persistent and green variety of vesuvianite

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variscite cabochon from United States

variscite

It recalls the old name of Vogtland (southern Saxony, Germany) called Variscia in Latin, where it was discovered in the valley of the Mess. A massive variety, found in the United States (Nevada,) with interpenetration of veinlets or quartz nodules and chalcedony, is called “amatrix”

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