Opalised shell - pipi / cockle

Absolutely stunning fossil.
Opalised sea shell also known as a pipi or cockle. This piece is perfect for someone who collects fossils, gems or even both, as this shell has high grade colour on the inside. 
If you would like to cut it? It will produce an amazing solid gem once finished.
Shell info:
Dimensions: largest: 34.62 x 16.66 x (10.00 thickness)
                           Smallest: 21.08 x 15.55 x ( 7.42 thickness)
Weight: 40 carats
Opal: dark base opal 
Origin: Coober Pedy 
 Colours: greens, blues and oranges 
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