Goldstone is a type of glittering glass of Venetian origins. Originally manufactured in the 17th century by the Miotti family. Folklore describes the accidental discovery of Goldstone being made by medieval Alchemists. Another name for Goldstone is Aventurine glass from the Italian "avventura" meaning "adventure" or "chance". It has been called Stelleria, Sun Sitara, Monk's Gold or Monkstone. Goldstone contains tiny crystals of metallic copper.