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Exploration & Production Geology :: I would like to identify this chunk of rock i found : General Geology & Rock Identification - Exploration & Production Geology
Exploration & Production Geology
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I would like to identify this chunk of rock i found
http://www.epgeology.com/general-geology-rock-identification-f49/would-like-identify-this-chunk-rock-found-t4419.html		 Page 1 of 1
Author:  Buzzy84 [ Thu Dec 12, 2013 6:05 pm ]
Post subject:  I would like to identify this chunk of rock i found
I found this at a friends house on his rock wall and haven't been able to figure out what it is or if its worth anything, or if i should try to split it. I dont know much lol Any help will be much appreciated, Found in Maine if that helps and i'd say it weighs about 25 lbs. I have it on another forum and a couple people suggested arizona petrified wood. which looks to be possible, I would like to hear some more feedback tho. maybe i'll have to get better pics in the daylight. but this pic does show colors well.

Attachments:
rock 3.jpg
rock 3.jpg [ 182.47 KiB | Viewed 965 times ]
rock 2.jpg
rock 2.jpg [ 105.65 KiB | Viewed 965 times ]
rock.jpg
rock.jpg [ 118.45 KiB | Viewed 965 times ]
Author:  Harold [ Wed Jan 01, 2014 3:17 pm ]
Post subject:  Re: I would like to identify this chunk of rock i found
Looks like some sort of chert to me. But indeed could be petrified wood, although the structure is not that well defined (or visible on the foto's).

Chert is flacky and was used to make spears. Does the rock chip easily and do the flackes have a radial patern on the cleavage side?
Author:  Buzzy84 [ Thu Jan 02, 2014 10:35 pm ]
Post subject:  Re: I would like to identify this chunk of rock i found
Author:  WWLittle [ Mon Jan 06, 2014 12:30 am ]
Post subject:  Re: I would like to identify this chunk of rock i found
It does look like chert, specifically, because of the color banding, petrified wood. If it is chert, it should scratch glass as well as the side of a knife blade, and if you look at it under magnification, you should not be able to see distinct crystals. My bet is petrified wood.
Author:  Buzzy84 [ Mon Jan 06, 2014 5:10 pm ]
Post subject:  Re: I would like to identify this chunk of rock i found
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