Central Oregon Gem?

[MikeManning]

Found while hiking in central Oregon, trying to find out just what they are. Large is about the size of a large mans fist, small one half that size. Thanks for any help.

 

Amazon Forum Fav 👍

A Handbook of Civil War Bullets and Cartridges - Grab it through Amazon!

[mcl]

Hey MM, I'm far from qualified to chime in on this topic, but here is a picture of what a seller described as "rough polka dot agate from Madras, Oregon":



Emphasis on "rough", of course, polished examples look way, way different.

Other rocks which bear some level of resemblance to yours included the "raw Oregon opal":



And jasper from White Fir Springs, Oregon:



Again, I am no rockhound, merely an efficient internet user. Hope that gets you started/is useful.

-mcl

 

[MikeManning]

Thanks for the help. Still trying to find the correct answer. Its hard to tell.

 

[galenrog]

Central Oregon. Lots of territory. Lots of specific gemstone areas. To me, these look like a lot of other stones found in many places in central Oregon, eastern Oregon, southwestern Idaho. Take them to your local lapidary club. If there are any rockhounds there that do extensive collecting of their own, you should be able to get a good answer.

Time for coffee.

 

[Molewacker]

Bottom photo are Thunder eggs /geodes - the state rock of Oregon.

My great-uncle was a rock-hound to the bone. His massive Thunder egg collection was created by searching the reject piles of gravel mills/ or some aspect of road building post WWII. Best child memory was sitting near the saw as each was cut to see what was inside. Treasure hunting!