Beautiful RARE Peruvian Blue Opal rectangular cushion beads. Each beautiful Opal bead is unique in size, shape, and color. The average size of the beads is 25 x 18mm. The color of these Peruvian Blue Opals includes blue, green, brown, white and beige. What a stunning natural opal to add to your next design. Peruvian opal is said to stimulate creativity and helps ideas flow more freely. It also helps us face the future. If you are looking to improve your psychic ability, it will do that too. Have any old wounds? Well, Peruvian Opal is also known to release the trauma of old wounds. And, to top it off, this stone also aids restful sleep.