What is this petrified looking rock,

[Silver]

Found a bunch of this the other day. Curious as to what it might be.

 

[Down in Dixie]

Dinosaur turd? Very interesting though. Was it found near a creek bed?

 

[Silver]

Dinosaur turd? Very interesting though. Was it found near a creek bed?

Actually yes, within 150 feet or so.

 

[Down in Dixie]

Actually yes, within 150 feet or so.

Unfortunately that's the end of my expertise. My guess would be some kind of decomposing aquatic vegetation.

 

[Peace]

I will tell you for a fact it's not dino crap. I'm really not sure what exactly, at first look I was thinking some kind of calcite, but circular holes tell me know. It might be some kind of coral, and that would be my guess.

 

[wbvs58]

Meteorite?????
Is it heavy or light?

Ken

 

[sstterry]

There is an app for smartphones called rock identifier. Much like the plant identifier app.

 

[TCRanch]

Is it heavy? Looks a lot like a lava rock but they don't weigh much.

 

[Nick Wagner]

I've become a fan of Nick Zentner on YouTube, he's a geology professor at Central Washington University. Your part of the world has an interesting story to tell, from the Australian continent being attached to Montana some billion years ago, to the accretion of large igneous provinces formed a thousand miles or more away from where they now sit. He has videos on identifying minerals and rocks posted on YouTube. It is useful to also study the surrounding rocks, was this something covered in a lave flow, or a pyroclastic flow? I am only a novice and live a world away, most of the rock here is sedimentary, except for the igneous rock carried here by the glaciers.

 

[Ouachita]

Looks like when my ex-wife tried her hand at making dessert for third Wednesday potluck.

 

[504RP]

Some meteorites have iron in them. You might see if a magnet will stick to it. Looks like it might have been on fire at one time.

 

[WFfarm]

T-Rex kidney stone

 

[callmefence]

My initial guess and it's just a guess. is that it is some form of plant matter. It does look petrified . Meaning it's not actually preserved organic material but a mineralized copy of the material. I would take it home. Cool rock.
I hope @Silver doesn't mind
I'll show my favorite petrified fossil.
Found in a dozer cut through a limestone ridge on a fence job.
A tiny little turtle.

 

[Ouachita]

Was hoping fence would come along

 

[snakegap1]

Found a bunch of this the other day. Curious as to what it might be.
View attachment 20645View attachment 20646

we find coral that kind of looks like that in North Alabama

 

[Silver]

Extensive googling has led me to believe it is something called tufa.

Tufa is a variety of limestone formed when carbonate minerals precipitate out of ambient temperature water.


Modern and fossil tufa deposits abound with wetland plants; as such, many tufa deposits are characterised by their large macrobiological component, and are highly porous.

 

[Mrcopier]

Magma?

 

[faster horses]

Interesting.

 

[J Hoy]

Rock that looks like that is common in Yellowstone National Park. It is formed by minerals in the warm springs and geyser areas.

 

[J Hoy]

My initial guess and it's just a guess. is that it is some form of plant matter. It does look petrified . Meaning it's not actually preserved organic material but a mineralized copy of the material. I would take it home. Cool rock.
I hope @Silver doesn't mind
I'll show my favorite petrified fossil.
Found in a dozer cut through a limestone ridge on a fence job.
A tiny little turtle.
View attachment 20655View attachment 20656View attachment 20659

I like your little turtle. Have you ever had a paleontologist look at it. It might be a species never identified before.