resinous

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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thorite round cut

thorite

Discovered in 1829, its name comes from its composition rich in thorium. It is highly radioactive and only since a short time. there are interesting samples for gemology.

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crystallized talc from Luzenac in Arriege in France

talc

Its name comes from Arabic or Persian “Talq” which means pure, probably because of its powder. It has been known since antiquity. The light green soapstone (steatite) has been confused with jade, but it has not its hardness. This is number 1 in the standard

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pink crystals of stolzite from Zinnwald of Bohemia

stolzite

Identified in 1845, its name honors the Czech mineralogist Joseph Alexis Stolz (1803-1896) who discovered it.

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stichtite cut in cabochon

stichtite

It is named after Robert Stich, the mine owner, where she was discovered in 1910, in Tasmania, Australia.

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staurolite from Brazil oval cut

staurolite

It is named after his twins very frequently cross-shaped: the twin cross of St. Andrew (60 degrees) and that of the Greek cross (90 degrees), in Greek “stauros” means cross and “lithos”, stone, hence its name “cross stone”. Another twin “in wheel”shape exists in the

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