odd pebble

[hndmarshall]

at first glance this small stone looks to have an impression in it the thing is the stone is smooth to the touch

I found this stone in the drive did not have a ruler with me or a coin so you may have to judge its size by my finger

found in driveway gravel from Brazos river west of Houston Texas.

[JohnJ]

Does it show up better when the stone is damp?

[hndmarshall]

Here is the stone wet 

another odd feature is it is coated on the image side by some mineral?...giving the image an almost 3d appearance.

I am wondering if it is a fossil or just an oddity.

[Mark Kmiecik]

Looks a bit like an ammonite. Definitely fossil. The other TX folks will probably be more in-tune with what it is.

[BobWill]

A rounded stone like that could have washed from strata representing a lot of different geological ages that are cut by the Brazos River. It could be a bivalve, a brachiopod or even a gastropod like Orthonychia. It looks like it might be pretty hard to expose more of it to tell.

[hndmarshall]

well now it is part of my fossil family...lol