colemanite
ck_admin
March 24, 2021
It pays tribute to W. Coleman (1824-1893), founder of the borax industry in California.
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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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clinozoisite
ck_admin
March 24, 2021
Discovered in 1896 it was named after its resemblance to the monoclinic crystals of zoisite. It is part of the epidote group.
clinohumite
ck_admin
March 24, 2021
Discovered in 1876, on mont Vesuvius in Italy, it honors the name of the mineralogist Sir Abraham Hume (1749-1838). Some clinohumite gemstone was first discovered in Tajikistan, than Pamir, and then later in Vietnam.
chondrodite
ck_admin
March 24, 2021
Discovered in 1817, its name comes from the Greek “chondros” which means grain in connection with its well-formed crystals, isolated in the form of grains.
childrenite
ck_admin
March 24, 2021
Discovered in 1823, its name honors the English mineralogist John George Children (1777-1852). It is very close to the eosphorite and in its chemical composition iron is the dominant on manganese, unlike eosphorite where manganese is dominating.
