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Belemnite Fossils

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Belemnite Crystal Opals
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Belemnite Fossils showing hues opal colours are rare to be opalised and found in deserts south Australian opal fields.

Belemnite is a prehistoric squid like creature that is estimated to be over 100 million years old.

The harder parts of this creature are calcium carbonate and this is left after the jelly part decays and sometimes opal may form as it replaces the carbonate

Most opalised belemnites have little of blue colours and its rare to find multi fire colour in these specimens.

These specimens are found in cooper pedy south Australia and the Adelaide Museum has a magnificent 72.64ct part of a belemnite specimen that has been valued at One million dollars