While usually passive, if it comes out of the ground and gems pop up, DO NOT GRAB THEM. It will chase you for a very long time and does a respectable amount of damage.

"MY PRECIOUS!" Don't take its preciouses cause unlike Gollum it will bite off more than your finger!

Can not pick up with an argy. Upvote

Piles of loose gems are like wyvern eggs to them, if you take any, instant aggro

Don't pick up anything shiny it digs up or it will freak out.