Non veni pacem mittere, sed gladium.
Heirloom? Glass gem was developed in 2005. Glass Gem is a flint corn, best for decorations and maybe popcorn. It is very starchy and not sweet at all, like all flint corn. Looks nice.
Heirloom = marketing
I've ground flint corn before and it makes decent enough cornmeal, though maybe not as good as the "flour corns."
Too pretty to eat!