Lapidaryforum.net

Let's Rock => Identifications of Materials => Topic started by: crazyjays on December 20, 2016, 12:45:29 PM

Title: This is Jasper and ? I need help on ID
Post by: crazyjays on December 20, 2016, 12:45:29 PM

This is very neat rock.
Its jasper but i dont know what the rest is.

Title: Re: This is Jasper and ? I need help on ID
Post by: crazyjays on December 20, 2016, 07:46:34 PM

Is this even jasper?

Title: Re: This is Jasper and ? I need help on ID
Post by: peruano on December 21, 2016, 04:24:44 AM

I think its probably jasper.  It looks very similar to the brown jasper that I find close to you (Rio Grande Valley) that is often a replacement for wood (it usually has transluscent streaks and blackish veins that appear to be cracks filled in after original fossilization).  Yours here shows beccia fused in the brown jaspers so may not be the same.  The white material may be chalcedony (agate) that filled in later. Curious piece.    If its the jasper that I find, it will take a wonderful polish.  I'm giving a way a couple of pieces as Christmas presents this year.