Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: Desafina on 18/04/2021 12:50:26

Title: What kind of rock is this?
Post by: Desafina on 18/04/2021 12:50:26
 A few years ago in Venezuela, parque nacional de Cainama, the tourist guide found and gave me this rocks, he told us that a geologist told him that those could be radioactive but no one believed him. Nowadays I'm very curious of what kind of rock it may be.
Title: Re: What kind of rock is this?
Post by: Bill S on 04/05/2021 18:14:42
Hi Desafina. Welcome to TNS.

Iím surprised that none of our resident geologists has responded; so, for the time being, perhaps a word or two from an ancient, one time amateur would, at least let you know that you are not being ignored. 

It looks like a ferrous concretion; possibly limonite and/or goethite. Not sure what the central part is, but it will have been the catalyst around which the ferrous layers were deposited.

Don't give up on TNS, it's a much better forum than your initial experience might suggest. 

Stay safe, Bill.
Title: Re: What kind of rock is this?
Post by: Zer0 on 29/05/2021 19:17:27
Greetings Desafina!
🙏
& From All of US, Welcome to TNS SF.
🥳

Umm...i got no clue as to what that is... I'm no Geologist.
☹️

To Mee it looks like a seed of some sort, or maybe even rotten potatoes.
🤭

But yeah, sounds strange...the Guide just  handed it over to You?
No money charged eh?
🤔

& You simply took it...knowing it's Radioactive?
😲

Bravado!!!
👻

No Worries, someone out here would surely figure this out for ya.
👍


P.S. - @Bill S
HeeY Bill!
🙋
Where have You been?
😑
Hope all's Well?
🤞
Welcome Back!
😊