Folks here is very pretty Opalised Clam Shell from Coober Pedy that has very nice pinfire reds and greens and a few other colors as well.
Most Opal miners never find an Opalised Shell, all would be happy to have found this one.
This specimen has been professionally polished and as much of the natural shell as possible has been left, so you can clearly see it was a shell, always a bonus.
Some people would drill this and hang it as a pendant. It could be worked further to a ringstone. Whatever you decide, it will be a magnificent addition to your Opal collection.
30 x 22 x 11.5mm,. and 28.70 carats. a very white clean specimen.
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