You can use this pearl shell as a little dish when burning herb bundles or incense cones. You can also use it as a ring catcher or to store a few of your favourite crystals.
The shell has a lovely pearly sheen on in the inside, sometimes with small golden coloured patches, and is ~14cm long. Every shell looks different, of course.
If using the shell for burning herbs or incense, please add a layer of sand for safety and never leave unattended.