Oh, come on. Karis doesn't lash out at random. Much. Too often. Unless she feels like it. She simply leans against the boulder with one elbow instead, watching the Doctor's progress. He's so upbeat and positive and everything she hates in a person, but... he's so hard to hate at the same time. In fact, he reminds her a bit of a Forsaken or two she knew back home. She shakes her head, lowering her gaze to the boulder again.

"...you know. Gold, silver, iron, copper, saronite, fel iron... anything I can use to make stuff with. Otherwise... it's just a rock. Hell, I could see rocks like this all over the place back home!" She drags a claw across the surface of said rock for emphasis. "There's nothing different about it at all."