Opal, Bulgroo opal field, Quilpie, Queensland, Australia.

35,00

Opal veins (hydrated silica) formed in cracks and cavities in a ferruginous matrix (iron-rich sedimentary rock).
Beautiful contrast and opalescence.
This is the so-called boulder opal, typical of the Bulgroo opal field in Queensland, Australia.

  • Description

    Description

    Opal veins (hydrated silica) formed in cracks and cavities in a ferruginous matrix (iron-rich sedimentary rock).
    Beautiful contrast and opalescence.
    This is the so-called boulder opal, typical of the Bulgroo opal field in Queensland, Australia.

    This post is also available in: French

  • Additional information

    Additional information

    Weight 0,05 kg
    Dimensions 6 × 4,2 × 2 cm

Out of stock