Orthoceras Laminated - Book Ends - Fossil deep-rooted trauma Description: These screw tip mandrels

Description: These screw tip mandrels thread into various silicon and rubber abrasive bits

The mineral typically forms in crystals or masses with the characteristic rhombohedral shape of calcite

In other cases

Description: This container is made out of Orthoceras and has an Ammonite on the lid

protection

Orthoceras Laminated - Book Ends - Fossil deep-rooted trauma Description: These screw tip mandrelsMined from: Morocco Era: PaleozoicGeological Age: 500mya 200mya Description: These are Orthoceras book ends to add to your home. The ancestor to the squid, Orthoceras shells range in length from a few inches to over six feet. Their middle body chamber is transversely constricted, and that would help them crawl across the ocean floor and swim. Orthoceras could float by filling chambers of their shells with air and they used jet propulsion by squirting