This rare Australian opalised shell is a unique geological and paleontological specimen, naturally formed over millions of years as ancient marine shells were fossilised and replaced by opal. Originating from Australia’s historic Eromanga Sea region, this opal fossil dates from the Paleocene to Eocene period, making it an exceptionally rare and collectible piece. Highly valued by collectors and opal enthusiasts, it beautifully combines natural history with gemstone brilliance.
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