20387 - Extremely Beautiful 5.06 Inch Brazilian Agate Slice (Chalcedony Geode Section) Kettneraspis It preserves the vertebral body

It preserves the vertebral body as well as part of the transverse processes and the neural spine

Emmrichops

Rare specimen corresponding to the premaxillary tooth (Skull tooth) of a Tyrannosaur

Moody and Buffetaut 1981

deep subtidal shelf (1)

20387 - Extremely Beautiful 5.06 Inch Brazilian Agate Slice (Chalcedony Geode Section) Kettneraspis It preserves the vertebral bodyAgate 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