? FOSSIL ?

[wells]

I have found hundreds of fossils in my area - central Pa. - always shale, sandstone or limestone. Then this piece was found - it has a crystalline honycombed structure and i'm not sure if its a fossil or not. A Bucknell University geologist could not identify it. He did some acid test on it and could not say what kind of stone it is, although it appears to be quartz. Any thoughts . Thanks !

 

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[Jhaddad8]

Wow, weird, the crystal looks like quartz. Because it has bilateral symmetry it looks like a fossil. My guess is that it is a cast meaning what you see is the inverse of something, but I have no idea what. And even my guess is just a loose guess.

 

[Downer]

More likely a sculpture of some kind maybe?

 

[Harry Pristis]

I think that 'Jhaddad8' is on the right track. This is likely to be a pseudomorph of, say a clam. It seems that silica may have replaced, molecule by molecule, the original aragonite or calcite of the the clam valves. (I say clam, but the image is not adequate to really say what it is.)

 

[TJE]

Does the other (unseen) side close-off together as well?
Very Interesting!

 

[GatorBoy]

That's just cool. It looks like calcite crystal that made a cast of an Ipswich clam. "Piss clam"

 

[GatorBoy]

Mabey?

 

[wells]

Does the other (unseen) side close-off together as well?
Very Interesting!

The unseen side is just more-less flat with a small hole which connects with the 2 holes on the top side - you can look through the object using the three holes.
(I am assuming this object was in the possesion of some amerind at one time as it was found on a site where we find lots of artifacts.) Pretty sure its not carved as the stone is very hard.