Here's a beautiful piece of Turritella Agate, cut in an oblong oval shape and polished. This fossilized stone would make a great centerpiece for a larger pendant piece, or by itself with its beautiful snail patterns. It has a hole drilled through it so it could work well as a double sided piece without having to set it (you can see the string it's on in the photos). This particular piece is just over 1 and 3/4 inches long, just under 1 and 1/4 inch wide, and 1/4 inch tall.
I have two other Turritella pieces available (see last picture to see all these pieces together!) They can be found here: