Columbia River rock find

[Heyfyker]

Hello everyone! Found this different looking rock on the bank of the Columbia in the tri cities area. Might be nothing just couldn’t find anything like it online. Any ideas? Slightly magnetic in some spots.

 

[Anduril]

I don't know, but seems like it would polish up nicely in a rock tumbler!

 

[Heyfyker]

Well thanks! Need to acquire one of them eventually. Bunch of beautiful rocks around the banks of the Columbia!

 

[ToddsPoint]

It's a porphyry. Chinese writing stone. Porphyry's works up pretty nice with diamond tools. Here's a bannerstone I made from a similar type of porphyry. Gary

 

[Heyfyker]

Awesome!! Thanks for the help! That’s some craftsmanship, can only imagine the skill and effort that went into that piece!!

 

[DizzyDigger]

Pics looked sideways..is this better?