Jump to content
Nugget Shooter Forums

Help needed with rock identification


Recommended Posts

Ok, I found this rock in Pennsylvania when I lived on Big Dam Road (Which I was told there were plans to flood that area, so the old farm house we lived in may no longer be there) when I was just a boy, somewhere in the 1970's and have held on to it all these years never knowing what type of rock it is. I hope someone can help ID this... I believe I saw a picture of a rock just like this in an encyclopedia that my Aunt and Uncle owned, but can't recall what it is. Sorry in advance for the bad pictures... as the shirt says that my Wife bought me... I am the "Worlds Okayest Photographer" Lol

This is looking down at the top of the rockpost-27729-0-34023800-1445116112_thumb.j

This is looking at the side of the rockpost-27729-0-33485900-1445116140_thumb.j

Link to comment
Share on other sites

Well, it's fossiliferous...

is it soft? react with vinegar?

what about streak color?

MAybe limestone but the coloration is throwing me off... maybe marble

Edited by weaver hillbille
Link to comment
Share on other sites

I agree with Johnno, It appears to be the mineral Wavellite. Getting a positive test for aluminum & phosphate would pin it down.

Link to comment
Share on other sites

I agree with Johnno, It appears to be the mineral Wavellite. Getting a positive test for aluminum & phosphate would pin it down.

Yes, I think that may be the one! While not as nice as other examples on the internet, the radial structure appears to be the same. Thank you very much for your help Johnno, much appreciated!

Link to comment
Share on other sites

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...