A rare opalized fossil clamshell from Australia A rare opalized fossil clam from Australia that formed during the cretaceous period (about 100 million years ago.) Banged up, but bits of fire showing. Great collector's piece! Shown on 1/4" graph paper. Family : Opal Variety : Clam Shell Origin : Coober Pedy, South Australia Size : 32 x 27 x 20 Treatment : none known Total Carats : 64.33 Clarity : %
Dimensions are in millimeters(mm). If graph paper is shown, it is 1/4 inch Weight is in carats(ct) for total parcel weight. To find weight in grams divide the carate weight by 5)
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