Jump to content
Nugget Shooter Forums

My grandfather got this rock 70+yrs ago


Recommended Posts

Now this one is a head scratcher.  Based on the color(s), texture and some long lost rectangular minerals, I'm going with the mineral Chlorite, maybe with some Biotite.  Maybe a Chlorite, Biotite Schist (metamorphic rock).  From the bobbles on the "side" looks like it was heated to a high temperature.  Not sure if that is natural or from a furnace. 

Take a metal nail and scratch a small line on the sample.  Dose the material flake off in sheets? does it deform like plastic? does it just turn to powder? or  does it not scratch?  If you could report your findings that would be a big help.  Also, as Morlock asked, take the sample and rub a corner against the inside of a white toilet tank lid and see what color(s) the sample makes.  Let us know what color it makes.

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...