Peruvian Opal beads have a semi-translucent to opaque quality showing a waxy luster in a variety of White, golden, greenish blue, and blue hues on the symmetrical rondel beads of natural origin. Peruvian Opal is classified as Common Opal meaning that it does not have the `play of color` rainbow-like flashes of color. Mined exclusively in the Andes Mountains, Peru.