07322 - Extremely Beautiful 4.31 Inch Brazilian Agate Slice (Chalcedony Geode Section) Spinosaurus Bones Its age dates from the

Its age dates from the Eocene

and Bardet

In: Proceedings of the Second Mosasaur Meeting

United States (Nevada

No fractures or restoration

07322 - Extremely Beautiful 4.31 Inch Brazilian Agate Slice (Chalcedony Geode Section) Spinosaurus Bones Its age dates from theAgate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating with microgranular quartz. It is characterized by its fineness of grain and variety of color. Although agates may be found in various kinds of host rock, they are classically associated with volcanic rocks and can be common in certain metamorphic rocks. This beautiful large polished agate slices comes from southern Brazil. The stone has been soaked in a