It’s either Mulberry as Ronaldo said or Osage. The color gives it the look of an aged piece of Osage. As always pictures sometimes don’t show actual color & can’t give you a weight. How is the weight ?
With those pronounced medullary rays I’d say some kind of oak. A fresh cut on the end may help narrow it down between a red or white.
If that's fresh cut, I'd say mulberry as well. It will slowly weather from that color to a reddish brown. Kinda cool actually. Any more pics John?
I saw oakish grain too, but the color is what threw me. Never have seen oak that color. Now I'm not sure what it is.
I cut lots of mulberry and I've never seen radial lines in the grain like that before. Also the mulberry in my area usually has much wider rings as it's generally a faster growing tree and usually only the heartwood is orange while the sapwood is white. Not sure what this is but I'd be surprised if it's mulberry.
I see what you’re up to Jonathan Y You bring in a piece of long dead white oak, hold it over your kitchen sink, smother the end in honey and ask what flavor it is. Clever
I’ve never cut Osage so I can’t speak to that. Doesn’t look like any of the Mulberry I’ve processed. If it’s Oak I’ve never seen that coloration before.
I'll stop playing games. It is 60 million year old petrified oak from Oregon. Those who noticed the radial lines in the grain were on the right track. My guess is white oak family. My other passion, when I'm not firewood hoarding, is collecting, cutting, and polishing rocks. I especially like petrified wood. I cut this piece the other day, and it is the most realistic looking petrified wood I have ever seen. Ancient oak was also a slow grower, it seems, based on the thin growth rings.
A few more photos showing that it's a rock. About 5 pounds total. Looks almost like a chunk of wood glass on the inside.