Jump to content

Calcite ammonite prep


Recommended Posts

I found this lovely calcite ammonite at Saltwick Bay along the Yorkshire coast of the UK a while back. There was no shell remaining from what I can tell, leaving just the calcite formed inside. Not sure if this is common at all? 

8E452FC6-4CFB-426C-99D1-21E34193167B.jpeg

24EEBF66-B913-4AAC-9E8C-29857F822A24.jpeg

1A68BF49-1FED-4EC1-BBD3-5861B57F3D41.jpeg

  • I found this Informative 1
Link to post
Share on other sites

Very nice. :)

But that is the outer part of the ammonite. Those are the external ribs you can see.

The original shell has been replaced by minerals during fossilization. 

  • I found this Informative 2
Link to post
Share on other sites

Alex is right. Most of the "shell" is still there, although of course in the form of replacement calcite instead of the original aragonite. Like he says, it's quite common, but always good to find one with the shell still on instead of just a mold. Between 12 and 2 o'clock you can see the calcite mold inside.

  • I found this Informative 1
Link to post
Share on other sites
8 minutes ago, Ludwigia said:

Alex is right. Most of the "shell" is still there, although of course in the form of replacement calcite instead of the original aragonite. Like he says, it's quite common, but always good to find one with the shell still on instead of just a mold. Between 12 and 2 o'clock you can see the calcite mold inside.

Errr, Adam? 

But you can call me Alex if you like. :D

Link to post
Share on other sites
7 hours ago, Tidgy's Dad said:

Errr, Adam? 

But you can call me Alex if you like. :D

Sorry. I think my brain is getting soft. At least they both start with "A" :P You can call me Rocky if you like...

  • I found this Informative 1
Link to post
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...