What Kind of a Beach Rock?

by Judy H
(Visalia, Ca)

Spool Rock

Spool Rock

I found this on the beach in Cayucos CA buried in the sand and mud.


The beach was thrashed by the previous week's storms and I found this rock. It's smooth and looks like a spool.

I know you identify sea glass but if you can give me any information, or a site where I can send this in for identification, I would appreciate it.

Comments for What Kind of a Beach Rock?

Click here to add your own comments

Jan 31, 2017
 Fish Vertebra Fossil?
by: David

Rather than fossilized shark cartilage, this would more likely be a fish vertebra fossil.

We find vertebrae here on the beach in Peru that is similar. Run a Google search on fish vertebra fossil.

However, the piece in your photo appears to be too smooth on the sides and ends to be a vertebra, but... who knows?
Jan 31, 2017
 possible fossil
by: Steve

We cannot tell the size of this by the picture but by describing to a friend, this may be fossilized shark cartilage.

Like the teeth that are commonly found.
Jan 22, 2017
 I KNOW WHAT THIS IS
by: Judy H

I found out that this is an Amazonite ear plug.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Identify Your Sea Glass.

Share this page:
Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.

OdysseySeaGlass relies on advertising to cover costs of sharing sea glass info from around the world. Purchasing from an ad on our site costs no more than directly and provides us with a few cents income.

You will see Google and Amazon ads as well a few other advertisers as you view our pages. .

Browse Our List of Recommended Sea Glass and Beach Books