Thanks for your question, Kathryn.
This is from the script of GGGoH.
THE GREEN ROCK Sails past Trask and hits another rock projecting above the water-line. We see its _ENERGY RELEASED_ as it explodes into a million small pieces that sparkle as they dissipate into the wind and pond.
Usually when rock hits rock, one may splinter, but this seemed more explosive than that.
I assumed it had to be the Kryptonite causing the difference, rather than the pond rock.
I hope this answers your question
