Indonesian Stone Fossilized Shell

Behold a fat dove-grey spiral with a deep center hole and a rough, shoulder-like rim.

This fossilized shell from Sulawesi is from Sulawesi, Indonesia. It is stone. Sulawesi is a large island in Indonesia with a complex geology, and marine sediments there contain the remains of shells and other sea life. Here, a wide coil winds inward from a rough outer whorl to a small round hole at the center. The surface is matte grey with a pocked, chalky texture, and a thick lump of unworked material sits at the base. It is 6 inches wide, 6 deep and 7 high.

Goes round and round, then forgets where it started.