PARENT COMPANIES: TRUE BLUE OPALS PTY LTD & LIGHTNING OPALS LLC

CLAM SHELL

COOBER PEDY, SOUTH AUSTRALIA

OPALISED FOSSIL

GOOD COLOR

• What it is:
  A fossilised marine clam (from when central Australia was under an inland sea ~100 million years ago) that has been naturally replaced by opal.

• Location:
  Coober Pedy, South Australia — world-famous for opal, especially white and crystal opal.

• Why it’s special:

  • Combines fossil + gemstone

  • Often preserves fine shell detail

  • Some specimens show play-of-colour, which greatly increases value

• Types you might see:

  • White opalised shell

  • Crystal opal shell

  • Ironstone matrix with opal infill

• Value range (very general):

  • Small/common specimens: AUD $50–300

  • Well-preserved or colourful pieces: AUD $500–several thousand
    (Condition, colour, size, and provenance matter a lot)

PICTURES HAS BEEN TAKEN WET TO SHOW COLOR