These turquoise beads are 18 x 25 x 8mm. These faceted oval beads are a turquoise composite. The turquoise is ground into a powder and then infused with an epoxy to stabilize it and then pressed together into the shape. Such a pretty sky blue with lots of matrix. Pretty, Pretty! This semi precious gemstone is said to be the stone of communication, helping those who have a fear of public speaking. In the same vein, turquoise is considered to be a stone of friendship, strengthening the bond between friends.