• Christies auction house James Christie logo

    Sale 12052

    Science & Natural History

    19 October 2016, London, South Kensington

  • Lot 88

    A SLICE OF TIGER IRON

    ORD RANGES, AUSTRALIA

    Price Realised  

    Estimate

    A SLICE OF TIGER IRON
    ORD RANGES, AUSTRALIA
    from the Paleoproterozoic (2.5 to 1.6 billion years ago) the banded layers of hematite, jasper and chatoyant Tiger-eye
    15½in. (39cm.) wide


    Contact Client Service
    • info@christies.com

    • New York +1 212 636 2000

    • London +44 (0)20 7839 9060

    • Hong Kong +852 2760 1766

    • Shanghai +86 21 6355 1766

    Contact the department

    As one of the earliest fossilized forms of life, a mystery still surrounds the creation of Tiger Iron almost 2 billion years ago -- during a hostile era when the newly formed continents were barren and life was confined to the seas. Scientists have suggested that it is a banded iron formation (layered sediments caused by photosynthetic cyanobacteria) or a Stromatolite (layers of algae), or even both. Simple photosynthesising life forms such as these dominated the first two billion years of life on Earth, and were probably the source of the Oxygen in the atmosphere.