>"a hard sci-fi setting with no magic"
>look inside
>magic rocks

I wanna give my magic rocks some small little quirks to make them more distinct. Already have different looks for all ten types, but something beyond the merely cosmetic would be cool. Here's what I have so far:
>water crystals act kinda like oobleck, solid most of the time but slowly take the shape of whatever contains them
>steam crystals sweat
>fire crystals are hot (no brainer, same for ice)
>life crystals grow much faster then normal, even after separation from their source node, so mechanics need to take that into account

Talk about cool magic rocks, or else.