Today, while working in garden I came across something unusual, a small cylindrical shaped rock, to me it seemed unusal, but Im not able to distinguish either if it's naturally shaped like that, or is it something more than that.
Dimensions of cylindrical shaped rock are - 3,2 cm in length, and 1,5 cm in diameter, it has unusual, like two xx on one side of it. (I have attached pictures).
The pictures :
Any help with it, would be much appriciated.
Thanks in advance, and greetings from Latvia.