A Possible Fossil?

[Darko]

On 12/5/2017 at 10:15 PM, abyssunder said:

Not fossils, in my opinion.

These are pisoids (with a maximum diameter around 5mm) encased in a pisolitic matrix formed to be a sphere polished on the surface, in my collection. As I remember correctly it's from Madagascar.

Your specimen doesn't resemble this. I'm leaning toward something like orbicular granite, as supertramp suggested.

 

 

what can this be then??

[Ludwigia]

12 minutes ago, Darko said:

what can this be then??

There have already been a few suggestions here and I'm running out of ideas. Maybe you should show it to your nearest geologist.

[Darko]

1 minute ago, Ludwigia said:

There have already been a few suggestions here and I'm running out of ideas. Maybe you should show it to your nearest geologist.

They would probably say that maybe its a granite

[Ludwigia]

1 minute ago, Darko said:

They would probably say that maybe its a granite

Don't be so pessimistic. You'll never know until you ask.

[Darko]

2 minutes ago, Ludwigia said:

Don't be so pessimistic. You'll never know until you ask.

Idk where to go on that site..Can u help me out?

[Kane]

1 minute ago, Darko said:

Idk where to go on that site..Can u help me out?

What is your nearest university? Is it Belgrade? If so, they do have a Department of Geology and Mining.

[Ludwigia]

3 minutes ago, Darko said:

Idk where to go on that site..Can u help me out?

Or the nearest natural science museum.

[Darko]

2 minutes ago, Kane said:

What is your nearest university? Is it Belgrade? If so, they do have a Department of Geology and Mining.

Yeah in Belgrade.Thats true.I"ll see to be in touch with them.

2 minutes ago, Ludwigia said:

Or the nearest natural science museum.

Belgrade then.

[Ludwigia]

3 minutes ago, Darko said:

Yeah in Belgrade.Thats true.I"ll see to be in touch with them.

Belgrade then.

Have a nice trip And please let us know what they say.

[Darko]

1 minute ago, Ludwigia said:

Have a nice trip And please let us know what they say.

Thanks! I will!

[KimTexan]

On 12/6/2017 at 6:51 AM, supertramp said:

Abyssunder, 

any chance it's an amygdaloidal (volcanic) and oxidated river tumbled stone?

If I recall correctly Darko posted something volcanic a month or so ago. I thought it was a kind of lava at the time. I don’t think I followed the post to conclusion though, but I believe the river mentioned does traverse a volcanic region.

[abyssunder]

That's correct. You beat me to it.
# Just want to say, if the rock was found in the Morava river there's a good chance to be transported material. If I look the picture below I can see that it could be from a volcanic area, but that's just a thought. # - was my original wrote

 

excerpt from S. Schefer et al. 2011. Cenozoic granitoids in the Dinarides of southern Serbia: age of intrusion, isotope geochemistry, exhumation history and significance for the geodynamic evolution of the Balkan Peninsula. Int. J. Earth Sci. (Geol Rundsch) 100:1181–1206

 

 

[supertramp]

13 hours ago, Darko said:

They would probably say that maybe its a granite

 

more likely an orbicular rhyolite https://www.google.it/search?q=orbicular+rhyolite&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjHt6COmfrXAhXEuBoKHY1OBXEQ_AUICigB&biw=1517&bih=707#imgrc=wKlHyRQC1zxFXM:

but, as Ludwigia said, you'll never know untill you ask;

good luck

ciao

[abyssunder]

Or maybe, orbicular Diorite.

 

comparative image from here

[Darko]

3 hours ago, abyssunder said:

Or maybe, orbicular Diorite.

 

comparative image from here

Big similarity over here.

Yeah, thanks.

Ćao

[abyssunder]

You are welcome !