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New fossil! What hav I found? PIC's

  1. Mar 15, 2010 #1
    New fossil! What hav I found?? PIC's!!

    Hi, I have a sister who goes to high school and found this fossil, and now were wondering what it actually is! Could anybody help us figure it out? Thanks!
     

    Attached Files:

  2. jcsd
  3. Mar 15, 2010 #2

    Borek

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    Re: New fossil! What hav I found?? PIC's!!

    Pumice perhaps.
     
  4. Mar 15, 2010 #3
    Re: New fossil! What hav I found?? PIC's!!

    I was thinking against that, only because of it's high density.
     
  5. Mar 15, 2010 #4

    matthyaouw

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    Re: New fossil! What hav I found?? PIC's!!

    Doesn't float then? In texture and weathering it looks a little like a limestone or chalk. How hard is it? Can you get hold of any dilute hydrachloric acid? If it's limestone it should fizz.
     
  6. Mar 15, 2010 #5
    Re: New fossil! What hav I found?? PIC's!!

    No it doesn't float so it's pretty solid! :biggrin:
     
  7. Mar 15, 2010 #6
    Re: New fossil! What hav I found?? PIC's!!

    No, I can't get any dilute hydrachloric acid any time soon, I'm off campus visiting home.
     
  8. Mar 15, 2010 #7

    Evo

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    Re: New fossil! What hav I found?? PIC's!!

    What state was it found in? Was it found in a field, a river bed? Is the surface hard and smooth as opposed to rough? Does it feel sandy or porous?
     
  9. Mar 15, 2010 #8

    turbo

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    Re: New fossil! What hav I found?? PIC's!!

    I have picked a lot of limestone off the breakwater between Tampa and Clearwater, and found a lot of fossilized sea-critters. I also found some limestone with small voids in it, not unlike the pix in the OP.
     
  10. Mar 16, 2010 #9

    matthyaouw

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    Re: New fossil! What hav I found?? PIC's!!

    Try to scratch it with Your fingernail, a penny and a steel knife. If it's limestone it should scratch easily with the penny and the knife but not your fingernail.
     
  11. Mar 17, 2010 #10
    Re: New fossil! What hav I found?? PIC's!!

    matthyaouw said: "Try to scratch it with Your fingernail, a penny and a steel knife. If it's limestone it should scratch easily with the penny and the knife but not your fingernail."

    My reply: It does scratch into a fine white powder when scratched with a penny. Also, when I scratch with my fingernail a smaller fraction of the white powder is produced!

    Do you think it's not limestone then?
     
  12. Mar 17, 2010 #11
    Re: New fossil! What hav I found?? PIC's!!

    #ejoe89 replied with:
    .........................................................................................................................
    #The state it was found in?-------------------------------------------------- Michigan.
    #Is the surface either smooth and hard or rough?-------------------------- mostly rough.
    # Does it feel sandy or porous?-------------- Well kind of sandy like the texture of chaulk.
    ..........................................................................................................................
     
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