Spinosaurus Tooth - Fossil Size:Mini It is a gemstone variety

It is a gemstone variety of chalcedony (a cryptocrystalline form of silica) which contains small quantities of nickel

not opaque

or a solder joint fails

It will stimulate your mind and increase your creativity and intuition

These crab impressions are so well defined you can make out their bodies

Spinosaurus Tooth - Fossil Size:Mini It is a gemstone varietyMined from: Morocco Era: Mesozoic Geological Age: Approximately 112 to 93 million years ago Description: Spinosaurus is a genus of theropod dinosaur that lived during the Late Cretaceous period. Spinosaurus is one of the largest known carnivorous dinosaurs, estimated to be up to 50 60 feet long. It had a long, crocodile like snout, conical teeth suited for catching fish, and a large sail like structure on its back formed by elongated neural spines.