Goniatite Ammonite Bookends 65de92f5c40dafb1acf9589def8d7888 Sometimes a pocket it will

Sometimes a pocket it will remain intact and the void will not fill completely

octahedral or dodecahedral crystals

lightweight

Perfect crystals are rare

Crinoids began life some 530 million years ago

Goniatite Ammonite Bookends 65de92f5c40dafb1acf9589def8d7888 Sometimes a pocket it willAmmonites are an extinct group of marine animals in the Cephalopoda class. They are invertebrates and are more closely related to coleoids (squids, octopus, and cuttlefish) than they were to the chambered nautilus, even though they looked much more similar to the nautilus. The name Ammonite was derived from "ammonis cornua," translated to mean Horns of Ammon. Ammon was an Egyptian god that was typically depicted wearing ram horns, whose spiraled shape