It looks exactly like a piece of driftwood ... But it's agate.
 
The agate in one end of this is exposed. If it wasn't, then you would never be able to tell by looking at it that it wasn't a piece of weathered driftwood.
 
I have no idea how my dad acquired this rock. I have never seen anything like it in the Utah desert. Checking the web, there are a few places in the world where petrified driftwood can be found. Peanut Wood from western Australia, named for the peanut shaped markings made by shipworms (actually, a type of clam) is one example. There is also some petrified driftwood found in Oregon.
 
But few rocks mimic real driftwood like this rock does. You'll be amazed.
 
One use for this rock would be as a feature in an aquarium. You can't use real, organic driftwood because it decays in the water. So acquarium shops sell artificial, ceramic driftwood. But it never really looks like the real thing. This one does.
 
If you're interested in more rocks, you can save a few dollars by combining several items into the same custom order.  There will be just one shipping charge in a cost-effective USPS flat rate padded envelope. Send a message before ordering so we can set up the order. I do a lot of my business through custom orders and I love to work with people to get just the right rocks you're looking for.