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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 …
actualités
marcasite
ck_admin
March 24, 2021
Identified in 1845 by von Raidinger, it was found being different from pyrite by René-Just Haüy in the early nineteenth century. Its name comes from either the Arabic or Moorish to signify that it has a metallic color yellow. This is an iron sulphide containing
kornerupine
ck_admin
March 24, 2021
Mineral honoring the young Danish geologist Andreas N. Kornerup (1857-1881) who discovered it in Greenland. Sometimes it can present a speckle of the type “cat eye”. Often brown and dark, beautiful yellow-green varieties are from Sri Lanka and it has now been discovered in emerald
heterosite
ck_admin
March 24, 2021
Its name comes from the Greek “hetero”, other, because on the same deposit it was the second mineral containing manganese to be discovered. It forms a group with purpurite, the iron pole of the phosphate is the heterosite and purpurite the manganiferous pole.
epidote
ck_admin
March 24, 2021
Its name comes from the Greek “epidosis” for generous, that lives largely, referring to its crystalline form, which is a juxtaposition of numerous slender prisms. Its former name, pistachite, was referring to its color. There are several varieties: The variety clinozoisite, is a dimorph of
dumortierite
ck_admin
March 24, 2021
Its name honors Eugene Dumortier, a paleontologist from Lyon (France )(1802-1873). It occurs most commonly as quartz inclusions, it is then called “blue aventurine”.
