Honestly? It's hard to tell. With how unstable this place is, factoring in Discord, and everything else? Unless I start crystallizing on the spot or spitting up bits of rock I'm not sure I'd have a way of differentiating it from anything else. Unless there are a certain set of symptoms to look out for?

[Lord... one of the many reasons that, even if Rin could call forth her sister from her shard, she wouldn't. It's safer as she is. Unknowing of the trials Kenos presents. The dangers.

Hah, if that shard even is her sister...]