Colored glass Christmas baubles produced in Italy according to the ancient techniques of the master glassmakers of Murano. Made of blown glass and modeled by hand, they come in bright shades of red. These baubles are the perfect accessory to bring color and joy to your Christmas tree. “Avventurina” glass is a particular process invented in Venice on the island of Murano in the first half of the 17th century (around 1620). It is a translucent crystalline paste, in which specks or crystals of copper with bright metal oxides are immersed, which create an effect that imitates that of aventurine quartz. Called "Avventurina" because even the most expert Murano glassmaker found it very difficult to create it, making it was a real adventure hence its name. Slight differences in size, color and density of Murrine and grit are not to be considered defects but unique characteristics of a handcrafted product. model: AVVENTURINA code: 130-PN