He does nod to confirm, but Soldat seems to know which to go for, which is interesting. Some of these stones do look fairly unique but he had taken it for coincidence. He's no geologist, though he does like pretty rocks.

The reaction, well - Rosinante hadn't known what to expect, so it is what it is, but it makes him curious. "What was he right about?" he prods cautiously after a quiet moment. Maybe he'll even get an answer.