Pertrified wood with tool marks?

[VeeDubya]

Hey gang!
My wife and I bought our property about 10 yrs ago here in Spokane. We have a 115 yr old house, and we own the lot behind us. It was the first house put in on this block, so they never out an alley in. I have time finally to get our property clear. Come a long ways. Our plan is to buy a metal detector and see whats here. In our prepping the property my wife dug up ground to level it out a bit. In doing so......we dug a foot down in one spot and came across a few rocks. When we took a break i was eager to look because my son and I have a rock collection. We brushed it off and was please to find a 5lbs piece of petrified timber. I turn to look, there are clear as day, straight cut lines where someone started to cut it. ( when it was wood) and also a few puncture marks, from what looked to be a square, almost horse shoe type holes!?!? Is this a piece used by man.....how long ago? ( unsure how long it takes to replace the wood with rock. Very unclear how long it takes. One place say this....another that.
Need some insight...guessing someone can help.

 

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[Tedyoh]

Might be a tooth?

Some ancient animals had Ivory teeth and they have growth rings like trees....elk currently do now (called whistlers).....there was a species of a Giant elk a long time ago.

 

[Rick K]

Doesn’t look like any petrified wood I’ve ever seen. Looks like some kind of metamorphic rock beat up by a glacier.

And no, petrified wood is more than hundreds - and even thousands of years old.

 

[VeeDubya]

Ill have to take a better pic. It was wood at one time. Like the top of a post or? Who knows. View attachment 1599310 View attachment 1599311

 

[huntsman53]

The current pic attachment does not work, so I hope to see the new pics.

 

[Charlie P. (NY)]

No image?

The petrified wood around Alberta, Canada is 305 million years old. Predating tools by about 302.4 million years. ;-)

Are you sure it's not just old, pickled driftwood?

 

[Kray Gelder]

Tool marks on petrified wood, from when it was just wood, can't happen. Sorry. Any petrified wood found predates man by tens of millions of years.