Rock identification???

[Edgychris]

Hello. Found a rock today that stood out lol. It is a much lighter green in person. Herea is a pic. Is this granite??
Always appreciate all your input. Thanks

 

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[Jon Stewart]

looks like schist from here. Google it.

 

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[ToddsPoint]

Shale or Phyllite. Gary

 

[Charl]

Looks like petrified wood

There is no naturally occurring formations containing petrified wood in Massachusetts.

 

[Charl]

I’m guessing a type of soft shale (water-logged?). -and the other-a water worn piece of brick-clay?

I like the brick idea very much. That would explain the holes or vesicles. I do not believe it is ochre. As for the other rock, first off, it is not granite. I do not believe it is shale. In eastern Ma., most of the shale will be from the Carboniferous Era Rhode Island Formation, occurring only in the Narragansett Basin of RI and Ma. Outside the basin, south of the basin, it will also show up as glacial shale cobbles. And it won't look like that....

I believe it is a metamorphic rock. As has been suggested, perhaps schist. Perhaps phyllite..

If it is petrified wood, again, there are no formations of petrified wood known from Ma. Could the glacier have dropped some off from further north? Well, there is no petrified wood in northern New England, either. The layering people are seeing may point to it having been a sedimentary deposit at one time, but, via time, heat, and pressure transformed into a metamorphic rock.

I do not believe it is petrified wood. Looks much more like some kind of metamorphic rock.

 

[Charl]

Oh yeah, that totes looks like wood, you can see the wood grain on the side angle.

The cementized petrified wood I have found is super heavy.

I vote petrified wood

I have to disagree, having collected rocks, minerals, and fossils in southern New England most of my life. Admittedly, rock and mineral hunting was pretty much a childhood hobby for me, fossils a lifelong thing, even before artifacts. I do not believe that is wood grain you are seeing. I might better be able to ID it in person, but it clearly looks like a metamorphic rock, not igneous, and if at one time sedimentary, it has metamorphosed.

The only remains of trees from the Upper Carboniferous Era in our region, namely, SE New England, including eastern Ma., are sandstone casts of things like calamities. A sandstone cast will preserve trunks in the round, but a sandstone cast is simply a cast. It is not an ancient plant with mineral replacement, which is what occurs in the formation of true petrified wood.

Here is a sandstone cast of the branch of a 300 million old calamite "tree"(really a gigantic reed), from the Rhode Island Formation. This is 100% a sandstone cast fossil, not petrified wood. There are also a few areas where the original carbon from the plant has preserved as coal...

View attachment 1797189

 

[MAMucker]

I found a similar post/discussion on a rock picked up along the sea coast of Maine.

https://www.reddit.com/r/rockhounds...source=amp&utm_medium=&utm_content=post_title

 

[Edgychris]

Hey Mamucker. Im learning. Patience is a vertue. Yes when i find things that stand out I would like to know what it is. Im come to you guys because their seems to be a selective few of you who know things. I will not ask the same question twice. Fast learner. I really appreciate you and Charls' input amongst others. Yes. Rock ids....

 

[Edgychris]

Learning nomenclature

 

[Edgychris]

Do t have to say anything if you do not want

 

[SnakemanBill]

Looks like a schist.

Don't take it for granite!

 

[Edgychris]

Haha may be shist but dont hate. Phh

I did not think they were special, thats your presumption. Wanted to know, simply, what they are.

 

[Edgychris]

Clear as day, not clay, found on a sunday

Let it be