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Exploration & Production Geology • Please help me ID this interesting rock : General Geology & Rock Identification - Exploration & Production Geology

Please help me ID this interesting rock

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Benjammin
  • Benjammin
  • Posts: 3
  • Joined: Thu Feb 07, 2013 7:56 am

Please help me ID this interesting rock

Thu Feb 07, 2013 8:04 am

Image

I've found a few of these around my place and would like to find out some info about them if anyone can help.

Thanks
Kieran
  • Kieran
  • Posts: 4
  • Joined: Wed Jun 09, 2010 4:15 pm

Re: Please help me ID this interesting rock

Thu Feb 07, 2013 10:05 pm

Looks like some sort of concretions. They can form by precipitation and recrystallization after burial of the sediment. ...at least that's my best guess.

How big is it?
Benjammin
  • Benjammin
  • Posts: 3
  • Joined: Thu Feb 07, 2013 7:56 am

Re: Please help me ID this interesting rock

Thu Feb 07, 2013 10:18 pm

About half the size of a foot ball. Theres some bigger ones around, heavy too, maybe 30-40 kg in size
Darryl
  • Darryl
  • Posts: 18
  • Joined: Wed May 02, 2012 3:45 pm

Re: Please help me ID this interesting rock

Thu Feb 21, 2013 8:22 pm

I'll vote for a concretion. Looks like iron compounds. If you want to sell one I'll pay $20 plus shipping for one of about 9-10 pounds.
Benjammin
  • Benjammin
  • Posts: 3
  • Joined: Thu Feb 07, 2013 7:56 am

Re: Please help me ID this interesting rock

Mon Mar 11, 2013 10:34 am

Darryl
  • Darryl
  • Posts: 18
  • Joined: Wed May 02, 2012 3:45 pm

Re: Please help me ID this interesting rock

Mon Mar 11, 2013 4:02 pm

Thanks,

Appreciate it greatly.
Darryl
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