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Specimen Details
Matrix Dimensions
Specimen Dimensions
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Additional Information
Australia produces about 80% of the world's supply of opal. Most of it comes from the Cretaceous deposits that formed from the inland sea that covered roughly a third of the eastern part of the continent.
Coober Pedy, to the west of the inland sea represents a marine environment with spectacular opals replacing mollusks. To the east of the continent, Lightning Ridge has produced incredible fossils of terrestrial animals.
