Adventurina is Gold & Copper dust imbedded into glass. It is an antique form of iridescence and is most commonly know as Goldstone. Each of our beads is hand-fused with swirls of ancient iridescence. Cabochons have random bits of Adventurina. Round 16mm Adventurina Bead $2.40 Small Drop 12x23 Adventurina Bead $1.90 Large Drop 11x33 Adventurina Bead $2.40 Cabochon 21mm Adventurina Bead $1.60 Hand made glass beads from Venice Italy