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Coral or bone?

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by JSpencer on Apr 09
Coral or bone?

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Description: I`m not at all sure just what this is. It may be some coral remnants or possibly bone. Any ideas?
5 Comments on Coral or bone?
  • rickymouse says
    looks a little dried out but it would have made good soup when it was fresh. unedible now
  • JSpencer says
    Dr. Straight do you have any ideas on this?
  • Will Straight says
    My guess is that we're looking at a form sedimentary structure rather than a fossil. There are no diagnostic edges, outlines, shapes, or porosity that indicate bone, and coral usually has extensive internal striation, both growth-parallel and growth-perpendicular. I have seen fracture-filling minerals in brecciated limestone coat surfaces like this that when weathered give the rock an encrusted look. One test would be a strategic droplet of acid on the pale veneer. A reaction would rule out bone, but it won't help determine whether it is coral. Without better images and even possibly a look at the hand sample, this is my best estimate.
  • JSpencer says
    Thanks Dr. straight, I find some strange objects here when I dig. All from the creataceous Gulf.
  • JSpencer says
    This is the pic I was talking about Hubbster found in south Austin.
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