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 …
It consists of feldspar, mostly plagioclase and mainly oligoclase, some andesine and labradorite and has a characteristic appearance: there is a flicker of small metallic flakes inside an orange mass, this is why it was given the name of sunstone, or héliolite. This orange optical
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
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
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”.
