Woodbine/eagleford border-“carbonized” wood?

[Shaun-DFW Fossils]

I found this sticking out of a tall creek bank at water level, it doesn’t flake or leave residue like burned wood. Edge of woodbine and eagleford in far eastern Tarrant county. I’m guessing it’s petrified or at least very old? I appreciate in advance the confident explanations.

[Lone Hunter]

Yep carbonized wood, or maybe coalified is better description.

Edited December 24, 2023 by Lone Hunter

[Shaun-DFW Fossils]

1 hour ago, Lone Hunter said:

Yep carbonized wood, or maybe coalified is better description.

Thanks! It’s a first for me. I didn’t find anything else but some oysters, I took those too. 😂

I knew going into it that searching for new spots can result in strikeouts. I got a late start due to some holiday shopping but just as it was getting dark I found what I think is the transition zone I need to revisit..so more on that another day!

[FranzBernhard]

Its a coalified, squashed branch of wood.

I am wondering, if it could be proper jet?

Is it stable or does it develop cracks during drying?

Is it somewhat tough or very brittle?

@Shaun-DFW Fossils

Franz Bernhard

[Lone Hunter]

I have some of the same wood,  it's different in different parts of wood, some brittle in areas not shiny, still see woodgrain except on ends. The shiny parts and ends won't scratch with nail, it has a little weight, it streaks black in some parts and kinda brown in others. With jet not supposed to see grain, but don't it's possible it's part jet part coalified since process is different right?

[Shaun-DFW Fossils]

3 hours ago, FranzBernhard said:

Its a coalified, squashed branch of wood.

I am wondering, if it could be proper jet?

Is it stable or does it develop cracks during drying?

Is it somewhat tough or very brittle?

@Shaun-DFW Fossils

Franz Bernhard

Thank you! It’s stable despite visible cracks. Two very tiny pieces (like small pixels) broke off but otherwise it doesn’t easily bend at all or scratch off. I hope to go back and find an even bigger piece.

[DPS Ammonite]

53 minutes ago, Lone Hunter said:

The shiny parts and ends won't scratch with nail

If not scratched with a nail,  then probably silicified.

[DPS Ammonite]

30 minutes ago, Shaun-DFW Fossils said:

Thank you! It’s stable despite visible cracks. Two very tiny pieces (like small pixels) broke off but otherwise it doesn’t easily bend at all or scratch off. I hope to go back and find an even bigger piece.

Probably best to soak in Butvar B 76 or similar to preserve. I found a similar piece in the Austin Group rocks of Plano. The water logged wood crackled, popped and fell apart in the sun.

 

Never saw any coalified wood in North Texas that was very hard and appeared to be jet. 

 

[Shaun-DFW Fossils]

2 minutes ago, DPS Ammonite said:

Probably best to soak in Butvar B 76 or similar to preserve. I found a similar piece in the Austin Group rocks of Plano. The water logged wood crackled, popped and fell apart in the sun.

 

Never saw any coalified wood in North Texas that was very hard and appeared to be jet. 

 

Thanks! I appreciate your humor as well 😆