Part-Prepped Asteroceras

Asteroceras ammonite obtained from offshore in Lyme Bay. These nodules have been sat in shallow water and been bored by modern sea creatures. There are a couple of larger burrows have damaged the ammonite (see photos), as well as numerous pin diameter holes. These do not seriously detract from the aesthetics of the fossil but they could always be carefully filled with resin. You could also choose to expose the internal chambers which are visible within the larger hole. The calcite fill is shades of brown and caramel. This specimen has been consolidated on the back as it was close to the nodule surface, so it could not be prepared from the reverse. The outer coil is hollowand the middle is sticky. It may the use of air-abrasive to prepare and some skill when working with the hollow chambers.

Rock 180mm x 165mm

Ammonite 60mm

★ ★ ★ Difficult. Recommended to use air pens and/or air abrasive where possible.