Heat Treated???

[SouthTexasFinds]

If I had two guesses, it would either be that this piece has been worked, then heat treated, then worked again. OR that it had been worked at one point, then sat untouched for a long time until another person had picked it up again and began flaking it again. Very interesting piece I have been studying and could use some input! I know that petrified wood was usually heat treated because of how hard the material is, but I don't know enough about the subject to ID positively. ( or if heat treating would only change the surface and nothing deeper) I can see heavy patina on the glossy (heat treated?) surface, but none on the fresher surfaces. Thanks for looking





EDIT. PICTURES IN POSTS BELOW

Screen keeps coming up telling me I don't have permission to post photos. I'll keep working on it sorry for the trouble

 

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[painterx7]

Pics boss

 

[SouthTexasFinds]

Tried uploading a couple different ways and still not working. I just posted a picture earlier so I'm not sure if its the site or what? I know I can't delete the post so I guess it's just gonna hang out til I can get some pictures on here. Sorry again.

 

[painterx7]

It's ok try later no big deal haha

 

[GatorBoy]

It's not unheard of to find evidence that Native Americans picked up artifacts from earlier times and re-chipped them themselves.

 

[monsterrack]

One thing I can tell you on heat treating , it depends on the amount of heat applied. When you heat stone to a high temp. it bounds the molecules together through out the piece and that gives it the shine. Native Americans found that by heat treating stone it chipped much better, that's because heating the stone bonds the silica molecules allowing a shock wave to travel through the stone much better. Now on petrified wood some does need to be heated, but some will become opalized , depends on the type of wood and ground conditions and then it will not need to be heated. Hope you get your photos up.

 

[SouthTexasFinds]

I've never had this problem before... It's still telling me upload failed or I don't have permission. Looks like one made it up, but I'm gonna keep trying to get the rest. Don't know if you can see much from this picture but I hope y'all can get the idea

 

[SouthTexasFinds]

Looks like 3 more made it through... Sure is giving me a headache

 

[GatorBoy]

Some more photos would definitely help from that one alone I would say that is a natural piece of something those ridges don't look like flake scars to me.... in that photo anyway

 

[SouthTexasFinds]

Still working on getting some of the pics I took in daylight up, just took those now and they let some of them post. I found this with a couple preforms, flakes and others, so I would definitely assume they were knocking chunks off it, but I couldn't tell you for sure cause I wasn't around then. Hopefully those 3 new pictures give you a better idea. Thanks

 

[monsterrack]

Someone has knocked some flakes off of that piece at different times and that is palm wood.

 

[GatorBoy]

That one missing piece definitely happened more recently than the patina on the rest of the piece.
It looks like a rough chunk of petrified palm wood to me.
Oh hey I guess we were typing at the same time

 

[GatorBoy]

 

[SouthTexasFinds]

I would definitely have to agree with the both of you on the palm tree. There are quite a few spots that appear to be flaked more recently than others, but I wasn't sure if that was heat treating that created that darker glossy look, of if that was just from aging. There is patina on some of the glossy part, and maybe even the lighter, but not all over both

 

[SouthTexasFinds]

Sorry if I'm not being real clear with the piece, it has just had me mind boggled for some time now, wishing I could get those better pictures up as well

 

[SouthTexasFinds]

 

[GatorBoy]

That's a nice chunk of material I would refer to it as a core or mother stone.. I wouldn't doubt it's been in at least one forest fire

 

[SouthTexasFinds]

Yeah that's about all I'm pretty sure of so far, that its a core and its palm tree. Would aging/patina turn the rock to those deeper yellows? Or would that be heat doing that?

By the way i tried messaging you gator but you have too many messages! I put some of those pictures back up for now on the fossils.

 

[GatorBoy]

Oh man... Thanks for telling me sorry about that. I'll go delete some of the old ones and check out the photos

 

[rock]

Yeah Id say core. The natural cortex is the darker part and the pieces they took off is the lighter section on it. Nice lithic