If you are unsure if a rock is a disguised golem or not, a spyglass shows their name and level even when disguised. Also, when disguised, the rocks often move slightly as you get close, re settling onto the terrain.
All rock elementals have the same rock skin when disguised. It is a bright yellow boulder and is very noticeable against dark mountains. Keep your distance, as they can aggro on to you when you get close.
If you're looking to slay one of these beasties, here's a clever way. You and a tribemate go out on an argentavis, one of you is driving, the other is attached to it via grappling hook with a rocket launcher and a good amount of rockets. Tried this with one of my tribemates and we had a blast.
I literally hate these things I remember one time I was out with my jeraboa on my shoulder mining rocks when this piece of crap appears out of nowhere and kills me and my jeraboa I got my revenge though when I exploded it with a rocket launcher
I have seen more than enough of this and I only have seen 10 to say &(&)&(@@(&(&@@@@!??$?!/@;@( IT!!!!!!!!!!!! But I have found out how to lure the &&$;!;!'&!?,@"/);(,!&@$! AND to avoid the rocks it throws.
To do this also note I did not lvl up my speed but to survive this @&&$!&&$!&??& all you have to do is watch it while WALKING away from it only running for a little bit to get some distance but all you have to do is watch out for its rock throw animation MEANING when it stops moving face forward and run in a diagonal way. Your chance to survive goes up from 25% to 75% "you know as long as you start" making that v line because it can only throw straight so going in a diagonal way makes it hard for it to kill you. Hope it helps
When a tribe is attempting to attack your Base using rock elementals the most effective method to kill these gigantic bullet sponge is to aim below the knees and shoot multiple rockets at it, it should kill the rider instantly and the elemental fairly fast, warning do not aim for the head you'll only waste rockets