Any Idea what this is ?

woodman3006

Greenie
Jul 16, 2010
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Appears to be a blue "chert" nodule also called "chalcedony"
The colors can vary from very pale to very dark.

chalcedony.jpg

GG~
 

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I was going to suggest a chert nodule, but didn't know it could be found in blue colorations. I think GG's got it first.
 

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Thank You for the help identifying the find for me, Do you know if it came from the new england area or if it got brought here by truck or other means.

Thank You Again

Woodman
 

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woodman3006 said:
Thank You for the help identifying the find for me, Do you know if it came from the new england area or if it got brought here by truck or other means.

Thank You Again

Woodman

Most likely didn't travel too far as hauling rock is expensive.
Of course it could have been transported by glacier as that is free :tongue3:

I'll check and see if it is native to the New England area.

Which state was it found in? Or was it found on an outlying island?
 

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Hi

It was found in New Hampsire pretty much right in the middle of the state by lake winnipesaukee.

Thanks
Woodman
 

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woodman3006 said:
Hi

It was found in New Hampsire pretty much right in the middle of the state by lake winnipesaukee.

Thanks
Woodman

After doing extensive research online and not coming up with any examples of chert nodules from NH and also checking with the USGS of NH and reading the last 15 years of the New Hampshire minerals yearbook, http://minerals.usgs.gov/minerals/pubs/state/nh.html

Along with studying "The Geology of New Hampshire" Part one Surficial Geology published in 1951 http://des.nh.gov/organization/commissioner/pip/publications/geologic/documents/geologyofnh1.pdf

I have come to the conclusion that it is possible (though unlikely) that the nodule you found is native due to limestone formations being present in NH. However, because of the overall geology of the area it is highly likely that your find was transported to New Hampshire by way of glacier and then used as a road bed along with other glacial till salvaged from the remnants of a road cut.

In other words :dontknow:

GG~

New Hampshire Geological Survey: http://des.nh.gov/organization/commissioner/gsu/index.htm
 

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