Elegant ring made of 925 silver with elaborate setting.
Prehnite faceted, diameter: 10mm
The mineral Prehnite got its name after Colonel Hendrik von Prehn (1733 - 1785); spellings like Phrenite, Prenhite, Prenith or Phrenite are therefore not correct. Von Prehn brought back samples from the Cape of Good Hope in 1783 and had them examined by the mineralogist Abraham Gottlob Werner. He described the material and named it Prehnite after von Prehn. The stone is the first mineral that is named after a person.
Trade names for the Prehn are cape chrysolite and cape emerald, earlier common names are aedelite, chiltonite, coupholite and edelite.