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ThePhysicist

NSR Unknowns

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ThePhysicist

Hey yall!

 

These are a couple of items that were found in the North Sulfur River that I am uncertain about what they are. 

 

One appears to be bone, but has a rather porous and bubbly side and a flat and smooth other side. The other looks to be enamel, possibly from mastodon??

 

Thank you!

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ynot

Not sure about the first piece, but the second is a piece of agate (not fossil).

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BobWill
47 minutes ago, ynot said:

Not sure about the first piece, but the second is a piece of agate (not fossil).

It does look like some forms of agate but that would be very rare at this site. More likely something with calcite parts.

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DPS Ammonite
10 minutes ago, BobWill said:

It does look like some forms of agate but that would be very rare at this site. More likely something with calcite parts.

I have seen several pieces of translucent microcrystalline quartz (agate) from NSR. Most were petrified wood of unknown age.

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Anomotodon

First one is a turtle scute fragment, second - I agree with @NSRhunter, is a mammal tooth fragment.

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ynot
5 hours ago, Anomotodon said:

I agree with @NSRhunter, is a mammal tooth fragment.

I have seen a lot of agate that looks just like this piece, have never seen a tooth that has that much translucency, or that rough of a surface.

I still say the second piece is an agate.

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BobWill
2 hours ago, ynot said:

I have seen a lot of agate that looks just like this piece, have never seen a tooth that has that much translucency, or that rough of a surface.

I still say the second piece is an agate.

It may be. A hardness test will confirm that. @ThePhysicist

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NSRhunter

I'll post pics later of my examples from the Sulphur River :)

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ThePhysicist

thank yall!

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BobWill

@ThePhysicist could you test the hardness of the translucent portion?

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garyc

i'm in the mastodon tooth frag camp for the second one.

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ynot
14 minutes ago, garyc said:

i'm in the mastodon tooth frag camp for the second one.

What characteristics make You say that?

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ThePhysicist

I took some more closeups of the agate/enamel. The hardness is about 6.

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ThePhysicist

IMG_3549.jpg

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garyc
On 12/31/2018 at 6:08 PM, ynot said:

What characteristics make You say that?

With the new pics, I’m not so sure. I was basing my opinion on the whitish edge that is very characteristic of mastodon enamel. Now I see there is a lot more of the whitish translucency throughout the piece. Also, when I posted previously it was New Years Eve and I’d already started celebrating!!

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Scylla
24 minutes ago, garyc said:

With the new pics, I’m not so sure. I was basing my opinion on the whitish edge that is very characteristic of mastodon enamel. Now I see there is a lot more of the whitish translucency throughout the piece. Also, when I posted previously it was New Years Eve and I’d already started celebrating!!

:yay-smiley-1:happy new year.

 I thought the first one looked like alligator or croc scute.

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KimTexan

The first piece I cannot verify turtle. @JarrodB could tell you as well as @Foshunter.

What it looks like to me is the partially phosphatized material I find in the dark gray crumbly clay of the red zone. That stuff is loaded with phosphatic material. Sometimes I find these pieces of stuff. It is light gray, pitted and amorphous. I don’t know the name for it is, but I have concluded it Is partially phosphatized and didn’t turn black. I have found baculites where one end was phosphatized and the other end is what I just described. It is softer than the phosphatized material and is almost always pitted.

Most of the turtle I see in the NSR is smooth, not pitted. Gator and croc scutes are pitted.

This is NSR turtle material.

DF09A2BC-AA74-4D92-91C8-250908C38517.thumb.jpeg.a421a619818dff2295e15d4e5dddcf8b.jpeg

Other side.

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Not to say there isn’t another variety of turtle out there. 

 

There is definitely chalcedony of some variety that is abundant in the NSR. Petrified wood is a common fossil found that is preserved in chalcedony in the NSR. I’ve got lots of it.

I have also found quartz a few times. Once as in beautiful druzy form. I don’t know if it is a tooth fragment or not, but it sure looks like a form of chalcedony to me. 

 

 

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