Delicate Trilobite fossils in a black sedimentary rock set in silver. An unusual addition to any collection for either ladies or gentlemen .

Trilobites first existed in marine environments in the Cambrian geological period about 500 million years ago and flourished during the Ordovician and Silurian periods. Due to their hard exo-skeletons they were easily fossilised and so are often found in sedimentary deposits. 

Average weight : 4 grams        Average stone size : 2.7cm x 2.2cm

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