the main problem is that in dinker import hatchlings from africa, granite is basically the most common trait you will find. you get reduced pattern dinkers and busy/whacky pattern dinkers and full backstripe dinkers and granites. other morphs sometimes pop up, like pastel or hypo (thats one of the reasons why there are so many lines of these), but not nearly as often as granite.

and some of these are genetic, some of them are not genetic, and of the genetic varieties some are dominant and some are codom. but i guess a whole lot of them are just unproven and noone knows.

so, yeah, granite is complicated. and when someone proves out a nice genetic line of granite, a smart move is to give it a new name to set it apart from the rest of the amorphous mass that people call "granite".