Porphyry celt

dognose

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Apr 15, 2009
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This 6 3/4 inch Porphyry celt has slight ancient damage to the bit, but no other major damage and no plow strikes was obtained from the collection of Mr. Ed Wilson on Jan 25 2013. There is good patina on surface and some hammer peck marks still visible on the body.

Mr. Wilson, life long resident of Putnam County Indiana, was a relic collector for over 70 years and a member of the Central States Archaeological Societies Indiana Society.



20130629_210234.jpg
 

Upvote 19
Very nice...
 

This 6 3/4 inch Porphyry celt has slight ancient damage to the bit, but no other major damage and no plow strikes was obtained from the collection of Mr. Ed Wilson on Jan 25 2013. There is good patina on surface and some hammer peck marks still visible on the body.

Mr. Wilson, life long resident of Putnam County Indiana, was a relic collector for over 70 years and a member of the Central States Archaeological Societies Indiana Society.



View attachment 2122698
Can we see a veiw fro the bit end
 

Porphyry comes right out of a volcano. As the magma column starts rising the white feldspar crystals, called phenocrysts, start forming first. Once the magma is ejected it cools quickly. Fast cooling means smaller crystals form. Fine grained rock is much better for tools. The phenocrysts don’t seem to affect the strength of the rock and I think the Indians like the spotted rock.
 

I missed this one. What a beautiful piece of art it is. I once yakked a creek that had that type of rock in it. I looked but never found an artifact made from that type of stone. It’s now has houses all over it and I will never be able to go back.
 

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