Chrystal pony species

Has there ever been a species name for the chrystal ponies? Earth ponies are ponies, unicorn ponies are unicorns, pegasus ponies are pegasi, bug ponies are changelings/changedlings, and bat ponies are thestrals. so what would a chrystal pony be?

@RegMoD  

@Background Pony #7D9D  
It just be the crystal ponies

@Background Pony #7D9D  
Yes, I have thought of that however I figure there has to be more to it than just the crystal heart giving them the texture when in its vicinity. Also we don’t have to adhere strictly to canon on this. It is my belief that crystal ponies are a separate subspecies of earth pony in the same context that thestrals are a subspecies of pegasi.
 
_{Just realized I was spelling “crystal” wrong. Thanks for nothing spellcheck.}