Lapidary / Gemstone Community Forum
June 05, 2020, 03:40:51 pm
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 
  Home Help Search Login Register  

Southern, ID. Green rocks

Pages: [1]   Go Down
  Print  
Author Topic: Southern, ID. Green rocks  (Read 233 times)
Joe Gussenhoven
Newbie
*
Offline Offline

Posts: 11


View Profile
« on: August 28, 2015, 04:09:42 pm »

Hello. I was poking around and see a lot of these very deep green rocks.  Copper?   
Hope I posted this in the right place. Was near Challis. Found some agate with the same deep green running through it.
Stopped on the way home so only had a couple hours.

       Joe. 


* P1090702.JPG (582 KB, 1280x960 - viewed 17 times.)

* idaho agate.JPG (110.3 KB, 493x723 - viewed 10 times.)
Report Spam   Logged

Share on Facebook Share on Twitter

PanaMark
Full Member
***
Offline Offline

Gender: Male
Posts: 153


View Profile WWW
« Reply #1 on: August 29, 2015, 05:29:52 am »

The first one is a piece of basalt like material that we say is "jasper that wasn't quite cooked long enough". Meaning it didn't fully silicify. The second is a nice agate piece.
Report Spam   Logged

- Mark

Trying to see the potential in every rock (and everybody).
55fossil
Sr. Member
****
Offline Offline

Posts: 269


View Profile
« Reply #2 on: August 29, 2015, 07:35:27 am »

    Nice green something. The hammer is your friend and teacher here. Whack that baby, gently, and see what is under the green skin. And post a picture. Hope it is more than black basalt....
Report Spam   Logged

Joe Gussenhoven
Newbie
*
Offline Offline

Posts: 11


View Profile
« Reply #3 on: August 30, 2015, 10:29:21 am »

Thanks guys. Found green mixed with brown basalt. Never seen that shade of green before.

     Joe.



Report Spam   Logged
lithicbeads
Hero Member
*****
Offline Offline

Posts: 4927


View Profile
« Reply #4 on: August 31, 2015, 06:35:58 am »

The green looks like a vitrified tuff which can have all types of silica levels. It is quite common in central Oregon and tempts many people but the silica levels are almost always too low to get a high polish.  It does have a unique color , very saturated . I have seen copper minerals that are somewhat similar but are always just a bit different than the tuff. If you grind the tuff you will be able to see how much open structure it has. If it is dense without too many air holes it can make pretty nice accent beads .
Report Spam   Logged

Pages: [1]   Go Up
  Print  
 
Jump to:  

Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum

Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy