None of these seem quite right. There are no layers in ice cream to delaminate, so that can't be it. An efflorescence is an out-blooming, like a tuft of mold on a cheese, which isn't quite right. The fractures or whatever they are called come from the serving spoon/knife being cold enough to partialy adhere to the cold ice cream and tear it as it moves through. A hot spoon wouldn't do this, nor would warmish ice cream. I suggest that we name it after you...its the Lame Username Effect.