Ammonites were sea creatures with coiled shells similar to the modern pearly nautilus. Ammonites became extinct at the end of the Cretaceous Period, roughly the same time as the dinosaurs disappeared. Ammonites are commonly found as fossils, formed when the remains or traces of the animal became buried in sediment which later solidified into rock. Goniatite are ammonoid fossils of an early type found chiefly in the Devonian and Carboniferous periods some 400 millions years ago with a simpler structure, indicating the hardening of shell strength throughout the sea creature's evolutionary adaptations.
This is a an agatized or petrified coral showing shades of brown and yellow. Fossil Coral has natural, ornate star-burst patterns with the same hardness and durability as Agate. Fossil Coral has major deposits in Indonesia and Australia.
Orthoceras are extinct crustacean species from the Paleozoic Era from 400-million years ago, ancestors of the modern day squid. This is a black stone crystallized with a white Orthoceras fossil marking. Orthoceras are long extinct ancient crustaceans with long, straight, conical shells.
Wood, Leaves, Seeds and Roots become fossilized over time. Plant remains are responsible for the world's coal deposits.
Fossils from the sea may display tiny shells and corals with swirls of Agate and other crystallized minerals.
A variety of Chalcedony, usually found in black or brown and distinguished by the sea creature and fossilized snail patterns within the stone. In crystal healing, Turitella Fossils are used for inner stability.