Posted in response to Specimen Identification from Michael Lynch on May 24, 2013 at 08:19:07:
They look like opal to me, but some may be agate.
From Jim - May 26, 2013 at 10:35:35
Use the form below to post a reply to the Re: Specimen Identification message. If you haven't read the Rock Net FAQ and User Tips yet, now would be a good time to do so.