Strange rock ID

[chub]

Hi everyone,
found this one some time ago while detecting. I wrote it off as not being a meteorite but put it in my backpack anyway because it was interesting. Just came across it now while tidying up and thought I'd post it to see if anyone can shed some light on it. Size is a bit smaller than a golf ball.

Thanks

Chub

 

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[chub]

Non metalic. non magnetic. looks like a ball inside a ball.

Chub

 

[Moesia]

Hi. Is the outer shell made of quartz or mica? Is it muddy? The picture you posted is too out of focus.
Inside looks basaltic. Can you scratch the green stuff off or is it part of the stone? Put the stone on the ground take another photo with a steady hand and repost.

 

[Eu_citzen]

Concreation.

 

[chub]

Will post another pic tomorrow. Thanks

Chub

 

[Ponchosportal]

I agree it is a concretion.

 

[chub]

Thanks, I had a look at google images and agree.

Thanks for the help!

Chub

 

[Overseas]

I would draw a little dinosaur on it, so it looks like it is hatching.

 

[Moesia]

It is hydrothermally altered it would appear.

 

[GrnEydGuy]

I have found something similar with my gold bug here on the shores of Lake Ponderay in North Idaho. I ended up breaking it to pieces... wish I hadn't... there is a specimen here at the Coeur d Alene museum, I will have to go back to recall what it was. Will let ya know when I do