New fossil What hav I found? PIC's

[ejoe89]

New fossil! What have 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!

 

[Borek]

Pumice perhaps.

 

[ejoe89]

I was thinking against that, only because of it's high density.

 

[matthyaouw]

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.

 

[ejoe89]

No it doesn't float so it's pretty solid!

 

[ejoe89]

No, I can't get any dilute hydrachloric acid any time soon, I'm off campus visiting home.

 

[Evo]

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?

 

[turbo]

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.

 

[matthyaouw]

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.

 

[ejoe89]

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?

 

[ejoe89]

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?

#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.
......................