tungstates

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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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 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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