Peruvian Opal beads have a translucent to opaque nature with a soft range of Caribbean Seafoam Blues making this one of our favorite gemstones and sure to be one of yours. Opal derives its name from the Sanskrit word for stone. 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 of Peru.