Jump to content

2ème découverte d'un autre type


Recommended Posts

  • 1 month later...

Je ne pense pas les rognons de silex sont des concrétions de silices qui se forment dans des roches calcaires, il peuvent donc prendre toutes sortes de formes (malgré tout ils peuvent contenir de la calcédoine et des cristaux de quartz, d'autres formes de la silice).


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.

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.


  • Create New...

Important Information

This site uses cookies, link to the general conditions and privacy policy page: Terms of Use.