conchoidal

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 …

hyalophane

ck_admin March 24, 2021

Discovered in 1855, it owes its name to the Greek “hyalos” – glass-, and “Phanos” – which has the appearance.

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howlite

ck_admin March 24, 2021

Discovered in 1868 in California, its name honors the Canadian chemist H. How (1828-1879). Its porosity allows the dye it, but only in blue to imitate the turquoise. Cabochon cut, in its natural color it is wrongly called “white turquoise”.

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hodgkinsonite

ck_admin March 24, 2021

Discovered in 1913, its name honors H.H.Hodgkinson of the Franklin Mine in New Jersey, United States, where it was discovered.

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hiddenite

ck_admin March 24, 2021

This is a green variety, colored by chromium, of spodumene which is part of the pyroxene group, although green spodumene without chromium are also called Hiddenite. Its name honors W. E. Hidden, who discovered it in 1879 in the U.S. (Alexander County, North Carolina United

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