Object found in river - help to ID

WTF

Tenderfoot
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I found this mystical object in a river nearby where I live in Norway.

It was lying unscathed and in perfect condition without a scratch amongst stones and sands in the middle of a river.


No one has been able to tell me what it is. I found it two years ago, and am now trying to find someone that can identify it, because it's characteristics does not make any sense to me.

I have now contacted and been replied by National Geographic (did not have any staff that could identify the object) from them I was referred to NGI, Norwegian Geological Institute who neither had any expertise in identifying objects found in the ground. I am also waiting for a couple of more instances to reply to my inquiries, a.m.o some archeological ones, however, I doubt I will get any answers.

It weighs 15,3 grams, measure 2,6 cm diagonally, 1,4 cm vertically and is 0,6mm thick. The four sides measures about 2,5cm. The metal looks grey but has a rainbow coloured hew over it as one can see from the directly frontal shot. It doesn't look like anything that I know. It feels very heavy to hold for it's small size, too heavy for jewelry, too perfectly cut/designed to be a common part of an engine or any machine, at least of what little I know; not that I am anything of an engineer. It looks like both a decorative artifact as well as one of practical use. I can't help being curious.

Anyone?

wtf
 

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Got_4by4 said:
Good ID Stief! :thumbsup:
I just wished that I'd got into this thread earlier because I can second the ID!
The wavy pattern atop the insert helps to form the chips so that they come away from the area being cut. It used to be that chips would wrap around or build up then slip into the path of the cut causing a flaw in the surface finish. These inserts are mostly used on turning lathes but have also come into use by milling machine cutters too. The rainbow finish might be from getting hot during machining. They are usually made from carbide, a sintered metal, which is very dense and seems heavy like lead.

Steve, SoCal
Can you guess what it may be doing in the river?
 

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I can 3rd that is what it is..carbide cutting insert.

Green tick. Gg
 

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I'm impressed guys... but damn, there goes the thrill on that one:) But very good ;)= I think you guys just inspired me to a new hobby

Solved!
 

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