#4 it is far too blurry of an image to determine that. You are seeing what you want to. It doesnt look like that at all to me.
It almost looks like a blob of melted metal, possibly from volcanic or asteroid. It is probably the result of one of these and it is much larger than the piece shown here, the top layer of surrounding rock has weathered away from it so it appears to be standing when you are just seeing the tip of it.
I would've said something very much like this, but you beat me to it.
It looks like a blob of metal that was in the rock, and the rock has weathered away around it. As someone else said, earth used to have these kinds of things too, but there's no one on Mars to go, "Oooh, me find shiny thing!" It doesn't seem to be the right shape to be anything technological. Nor would it likely be sticking out of a rock in this way.
Thanks Jeff Winston and others: