Standard split ammonite pair Carboniferous These pieces of lapis are

These pieces of lapis are characteristically veined with lines of iron pyrite

circa 110 million years old

While they might not be perfect

Small: Width 8cm Height 6cm Depth 0

Standard split ammonite pair Carboniferous These pieces of lapis areProbably the most decorative fossil we sell, these ammonites have been cut open to reveal the internal spiral of the shell. The once hollow chambers of the shell of this extinct marine Cephalopod (something akin to a shelldwelling squid) have been filled with deposits of calcite, agate and other minerals over millions of years . Cretaceous, Albian, circa 110 million years old. From Mahajunga, Madagascar. Measurements are approximate and the minimum