• Coober Pedy - Australian opal veins

    Opal Stone – Natural, Specimen, Green

    Blue-green opal veins in ferruginous (iron-rich) rock from Australia, from the collection of the Natural History Museum, London, UK. Photo by Aramgutang. Public Domain.

    Article: Opal Mining in Coober Pedy: History and Methods

    Credit: Aramgutang

    GemstoneOpal Stone
    Natural or man madeNatural
    Gem StateSpecimen
    ColorGreen, Blue
    Photo phenomenaPlay of Color