• layered boulder opal - opal gems

    Opal Stone – Natural, Rough, Blue

    Layered boulder opal, about 3 cm in width. Photo by Dietmar Down Under. Licensed under CC By 2.0.

    Article: Opal Stones and Gems: Value, Price, and Jewelry Information

    Credit: Dietmar Down Under

    GemstoneOpal Stone
    Natural or man madeNatural
    Gem StateRough
    Photo phenomenaPlay of Color