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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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yellow aragonite of Czech Republic cushion cut

aragonite

Its name comes from the Spanish region of Aragon, Castille. Identified by Werner in 1797 is a calcium carbonate, like calcite, but crystallizes in another crystal system.

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square cut apophyllite of India

apophyllite

It was identified in 1806 by René Just Haüy, its name comes from the Greek “apophylliso” which means “exfoliates”, “that flakes “ … to heat, friction, acid. There are several varieties according to their chemical composition: rich in sodium, it is the natroapophyllite; rich in

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cushion cut green apatite

apatite

This is the most common phosphate found in nature, its name comes from the Greek “apatein” to deceive, referring to the long confusions made by Werner between this stone and emerald. This is the main constituent of bones and teeth in its hydroxylapatite form. It

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emerald cut anhydrite from Iran

anhydrite

Identified by Werner in 1804, its name comes from the Greek “anhydros” which means without water, as opposed to gypsum, which contains it. A blue variety that comes from Peru is called Angelite. Another variety from Italy (Costa Volpino in Lombardy) is called vulpinite.

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natural agate from Idar Oberstein

agate

This is a quartz, more exactly a transluscent chalcedony (itself a variety of cryptocrystalline quartz) which shows concentric bands sometimes containing opale. Comes in many colors, banded, forming concentric bands, more or less circular up to oval. Their formation is so far discuted : or

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