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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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rhodonite
ck_admin
March 24, 2021
Its name comes from the Greek “rhodon” for “ rose “, as for rhodochrosite. dark pink color, light pink, with black dendritic inclusions of manganese oxide. Soluble in acids which discolor it, easily fuses with a torch. Varieties of colorful gems come from Australia and
pyroxmangite
ck_admin
March 24, 2021
It takes its name from its resemblance to the pyroxene and its manganese content. Rhodonite has the same composition as the pyroxmangite formed in conditions of higher pressure and temperature.
pumpellyite
ck_admin
March 24, 2021
Rare mineral found in the Carriere de la fleche, at Bertrix in the Ardennes, Belgium. We must speak of “pumpellyites” because there are some in which magnesium dominates, in others it is aluminum and yet in others it is iron, as shown here for this
peridot
ck_admin
March 24, 2021
Formerly this mineral was called chrysolite, although the “chrysolitus” of Pliny was probably referred to topaz, a “yellow stone”, a “golden stone”. Also called ” stones of knights ” because it would be the crusaders who brought peridot from the east to europe where it
