Most corn has been selectively bred over the centuries to be a single color: yellow, white or blue. Glass gem corn, a varietal grown by Greg Schoen, harkens back to the days when each kernel of corn was a different color. This variation is due to the fact that, rather than being identical, all the kernels are genetically distinct siblings.
The glass gem echoes the jewel caterpillar, another organism than by dint of its otherworldly beauty recently went from natural phenomena to internet phenomena. Even though we live in a time where computer graphics make every chimeric beast and landscape visible, we're still just as – or even more –interested in natural freaks as our ancestors who once flocked to fairs and sideshows.