• Yowah nuts - opals in the Australian Outback

    Opal Stone – Natural, Tumbled, White

    Yowah nuts are walnut-sized stone concretions with opal in their centers. A split Yowah nut, "Lagoon," Queensland, Australia. Photo courtesy of liveauctioneers.com and Bonhams.

    Article: Opals in the Australian Outback

    Credit: Bonhams

    GemstoneOpal Stone
    Natural or man madeNatural
    Origin detailsQueensland
    Gem StateTumbled
    Photo phenomenaPlay of Color