Strange rocks

[Naukoveckiy]

Hellow from Ukraine,
I have found some strandge rocks.
I thought that they were extraterrestrial, or tectits or impactits.
But the institute said that they are all earthly.
But I am confused by a number of oddities.
Сan anybode help to understand what it is?

 

[Naukoveckiy]

The best of my founds -

 

[Naukoveckiy]

Maybe more fotos? or i can make foto under the microscope or throu the polyarization light

 

[fuss]

I suggest doing some simple tests such as hardness, streak, acid, and location found. Someone may be able to help with a bit more info.

 

[Eu_citzen]

Some seem like iron oxide nodules and concretions.

 

[Naukoveckiy]

Some seem like iron oxide nodules and concretions.

Thank you, your advise is useful for me

 

[Naukoveckiy]

The best of my founds - View attachment 1690405 View attachment 1690406View attachment 1690407View attachment 1690408View attachment 1690409View attachment 1690410

Isn't that a strange stone?
It still has traces of rust. type was bark.
In appearance, it is clearly fused.
It left marks from the teeth or even xs what%). there are two pairs opposite each other. The photo clearly shows two different tracks foto 1 and 3.
Weakly magnetic, from a small distance metal detector sees it.

I very like it.

 

[Naukoveckiy]

I suggest doing some simple tests such as hardness, streak, acid, and location found. Someone may be able to help with a bit more info.

I can not understand why people do not write.
fuss, let's consistently begin with some specific stones ..
and I will deal with them specifically.
THEY ARE VERY MYSTERIOUS, AND THEIR ORIGIN.
and at the same time revive the topic