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Need help identifying this strange thing

 
 
Reply Sun 4 Dec, 2016 12:26 pm
https://drive.google.com/open?id=1m6X9w-b2X8FDB5Z9VuOeakrSePE7Vseu5Q

I found this rock down in my creek..it broke open and as you can see, there is something inside the rock. It is a dark red color and smooth. It is hard like a rock also but as you can see it is different than the rock it is encased in. Anyone have any ideas of what this may be?
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Type: Discussion • Score: 1 • Views: 1,089 • Replies: 10
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Chief Mark
 
  1  
Reply Sun 4 Dec, 2016 12:28 pm
@Chief Mark,
I also may add this is in the North Texas area, almost into Oklahoma. Sandy soil just south of the Red River. Indian territory for hundreds of years.
0 Replies
 
rosborne979
 
  1  
Reply Sun 4 Dec, 2016 12:34 pm
@Chief Mark,
Might be a mineral inclusion, or possibly a fossil. Hard to say just from one photo.
0 Replies
 
Chief Mark
 
  1  
Reply Sun 4 Dec, 2016 01:07 pm
@Chief Mark,
https://drive.google.com/open?id=1-m4RG_M7LDdlOaqZk2M6X9-AEeYlYdmHjQ

https://drive.google.com/open?id=1DhBgZ06WaVSm6UWMlP-ku3pauAGY9UzeDQ
0 Replies
 
Chief Mark
 
  1  
Reply Sun 4 Dec, 2016 01:12 pm
@Chief Mark,
https://drive.google.com/open?id=1NdhsE3ebGpWaWPrQjxrF4Zv-vOquB8UxHw

This much larger rock was abou 20 feet from the alien rock in question
dalehileman
 
  1  
Reply Sun 4 Dec, 2016 04:05 pm
@Chief Mark,
Looks a whole lot like jasper, Mark, or other such chalcedonic encased in sandstone. If you really needta know you can chip it, see if it's shiny. But don't
0 Replies
 
rosborne979
 
  1  
Reply Sun 4 Dec, 2016 07:51 pm
@Chief Mark,
The last rock looks like fossilized wood. You should be able to confirm that by looking for wood-grain on the imprints.

I'm still not sure about the first one. What is the inner-core material made of? Is it a metal of some type, or is it a mineral? Can you scratch it? Is it hard, soft?
Chief Mark
 
  1  
Reply Mon 5 Dec, 2016 02:46 pm
@rosborne979,
It actually feels like a rock also.
0 Replies
 
Chief Mark
 
  1  
Reply Tue 6 Dec, 2016 08:49 am
@Chief Mark,
OK, I got a return email from a geologist at nearby SMU.

Hi Mark,

It’s hard to tell from the pictures, but my best guess is that it is a preserved burrow. Imagine a sandy area of a river point bar or maybe a tidal area of a beach. Some animal, probably an invertebrate like a salt water shrimp or a freshwater crayfish, has a burrow in the sandy substrate. If something eats the shrimp/crayfish, it’s unoccupied burrow will get filled with sediment. In this case it looks like the burrow in the sand was filled with mud. Again, just a guess from the pictures.

I will just go with the local smart guy. I'm happy now! thanks for looking
chai2
 
  1  
Reply Tue 6 Dec, 2016 10:00 pm
@Chief Mark,
A burrow huh?

That's pretty cool.
0 Replies
 
rosborne979
 
  1  
Reply Wed 7 Dec, 2016 05:17 am
@Chief Mark,
Thanks for the update. Seems like a reasonable possibility.
0 Replies
 
 

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