Best Find Mars Rover

So off I went to Mars Rover at NASA and viewed the new Sols or photos that have come in,I love the sky and scored a few I will post later,but I also like to look around the rock piles,I collect rocks and stones,might post some of the odd ones I have found,anyways back to Mars.
You gotta look around,take your time and examine everything as you never know what you will find like this gem.
I have no idea of what it is,but it sure is interesting I think.