Flame worked borosilicate dichroic glass marble. This handmade, one of a kind marble incorporates a good amount of dichroic glass on the inside and the back side has been fumed with Sterling Silver and 24k gold to create the colors seen there. The pattern on the inside is achieved in part by applying a piece of sheet glass with a metal coating on one side (the dichroic glass) to the end of a piece of clear glass rod. As the two pieces are melted together into a solid mass the sheet glass is twisted, which fractures the metal coating on the surface creating the many small flecks of reflective color seen within. A layer of black glass is the added to create not only a backdrop for the colors on the inside, but also to act as a surface onto with the color/pattern of the back side can be applied.There is also a small amount of the same dichroic glass from the inside added to the center of the back side of the marble for a little extra pop! It is 1.37" in diameter (35mm) and signed "J.Cavagnaro '21". This marble will arrive safely packed from my Dagsboro, DE studio.