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Author Topic: What is this....Rock...?  (Read 7911 times)

Offline gandd07

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What is this....Rock...?
« on: 24/05/2010 05:43:55 »
My brother found this under a tree stump while logging in Portsmouth ohio..I cut it in half at a machine shop. half of it just blew apart after they started to cut in half..It looks as if it was very hot at one time. The rocks looked like they were forged together. Someone at the shop said it was slag. The rock has crystal inside it. weighs about 7 Pounds. its smoothe all around , except for were a part was missing. thats the part were if you look it looks as if it was very hot at one time..Can anyone help me if so great. Here are the pics..thanks..
« Last Edit: 24/05/2010 07:53:33 by chris »


 

Offline RD

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Re: What is this....Rock...?
« Reply #1 on: 24/05/2010 07:26:00 »


That looks like a very oblate spheroid shape with layers inside ...
 
Quote
Meteorites are rarely ever a ball or sphere type shape, but actually quite irregular.
http://www.meteorites.com.au/found.html

Quote
If it's got layers, lamination, or any kind of linear or planar features, then it's definitely not a meteorite.

If it's spherical, then it's probably not a meteorite.
http://meteorites.wustl.edu/realities.htm

I second "slag".
« Last Edit: 24/05/2010 07:30:57 by RD »
 

Offline chris

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What is this....Rock...?
« Reply #2 on: 24/05/2010 07:55:34 »
Have you got a scale bar or some dimensions for the object please?

Chris
 

Offline gandd07

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What is this....Rock...?
« Reply #3 on: 24/05/2010 14:35:08 »
I have pictures of the inside , I will upload thanks..Slag doesnt have crystalls in them and it is smoothe.
Have you got a scale bar or some dimensions for the object please?

Chris
« Last Edit: 24/05/2010 14:46:59 by gandd07 »
 

Offline gandd07

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What is this....Rock...?
« Reply #4 on: 24/05/2010 14:48:15 »
12 inches by 10 roughly before it broke and about 5 inches thick.
Have you got a scale bar or some dimensions for the object please?

Chris
 

Offline imatfaal

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What is this....Rock...?
« Reply #5 on: 24/05/2010 16:50:52 »
Is it at all magnetic?   

By the by -  I get a dating site contextual ad from "ads by google" on this topic: please tell me it isnt because of the word slag.
 

Offline gandd07

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What is this....Rock...?
« Reply #6 on: 24/05/2010 17:59:02 »
Not slag, And its not magnetic but the crystals a very hard. It took a machine shop to cut in half about 20 min.
This was found under a tree stump while my brother was logging. Why would slag have crystal formation in it..Shawnee State University just got a slice of this today. They will keep checking it out I guess. Thanks..
 

Offline imatfaal

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What is this....Rock...?
« Reply #7 on: 24/05/2010 18:15:16 »
When you say under a tree stump - does this mean that it was under the growing tree?  If the tree was particularly old could this fact be used to set a minimum age and thus rule out on a time-line basis anything industrial?  Just an idea. 

I note that Portsmouth was a centre for ceramic and brick manufacture - is it possible that it is some form of by-product other than slag.
 

Offline JimBob

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What is this....Rock...?
« Reply #8 on: 24/05/2010 18:27:55 »
This looks to be the "cast" of the inside of some type of a shell; in other words, a fossil. It could be an echinoderm of some sort. When an organism dies, the softer parts rot away leaving a void. This was then filled with sand and mud. The hardness is because of the cement that causes the grains to be held together.

The university will look at it and probably make a thin section of this to identify the constituents of the rock. Don't be surprised - there will be iron in that analysis without a doubt.
 

Offline gandd07

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What is this....Rock...?
« Reply #9 on: 24/05/2010 18:39:12 »
Yes Found under a  tree stump, That they logged. It was a top of a mountain no living homes or building ever recorded there.I mean,  I have found non info. on anyone living or producing anything there. They had to make roads to get to the trees.
When you say under a tree stump - does this mean that it was under the growing tree?  If the tree was particularly old could this fact be used to set a minimum age and thus rule out on a time-line basis anything industrial?  Just an idea. 

I note that Portsmouth was a centre for ceramic and brick manufacture - is it possible that it is some form of by-product other than slag.
 

Offline RD

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What is this....Rock...?
« Reply #10 on: 24/05/2010 19:44:37 »

On closer inspection I'd like to side with Jimbob and change my vote form "slag" to "interior cast of bloody big shell" ...




Just found this Fossil ID forum who may be able to help.

« Last Edit: 24/05/2010 19:53:16 by RD »
 

Offline gandd07

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What is this....Rock...?
« Reply #11 on: 24/05/2010 21:41:55 »
Septarian Nodule..Shawnee State University..Thanks, for trying Guys..

On closer inspection I'd like to side with Jimbob and change my vote form "slag" to "interior cast of bloody big shell" ...




Just found this newbielink:http://www.thefossilforum.com/index.php?showtopic=959 [nonactive] who may be able to help.


Septarian Nodule

On closer inspection I'd like to side with Jimbob and change my vote form "slag" to "interior cast of bloody big shell" ...




Just found this newbielink:http://www.thefossilforum.com/index.php?showtopic=959 [nonactive] who may be able to help.


 

Offline austinl

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What is this....Rock...?
« Reply #12 on: 06/07/2010 22:19:25 »
anyone ever  thought it might be a fossilized turtle shell?
 

Offline tommya300

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What is this....Rock...?
« Reply #13 on: 07/07/2010 08:40:06 »
what does the bottom side look like?
 

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What is this....Rock...?
« Reply #13 on: 07/07/2010 08:40:06 »

 

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