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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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sturmanite emerald cut

sturmanite

ck_admin March 24, 2021

It honors the name of the Canadian mineralogist B. Darko Sturman.

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pink crystals of stolzite from Zinnwald of Bohemia

stolzite

ck_admin March 24, 2021

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

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oval cut sulfur

sulfur

ck_admin March 24, 2021

It has been known since antiquity, its name comes from the Sanskrit “çulbâri” meaning “enemy of copper” or from the Latin “sulpur”. Reduced in powder it was used to repel insects and burned to keep away the “vermin” and the “enemies”. A component of gunpowder

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oval cut scheelite from China

scheelite

ck_admin March 24, 2021

It is named after the Swedish chemist Karl W. Scheel (1742-1786) who discovered the tungstic acid. Tungsten is the current name of the chemical that was the metal component of wolframite, scheelite is still called a wolframate or tungstate …

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scapolite from Tanzania drop cut

scapolite

ck_admin March 24, 2021

It owes its name to its prismatic facies (from the Greek “skapos” rod and “lithos”, stone) and designates an isomorphic series going from sodic marialite to calcic meionite. The members of this series are the Wernerite, the Dipyre, the Meionite, the Marialite. The Wernerite, which

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