Today I learned that Pixie Crunch, a modern variety less than 30 years old, is an "heirloom" apple because, apparently, it is not Honeycrisp , Gala , or Red Delicious ( Not, by the way.) My two tasting samples are small and medium, slightly oblate spheres with no appreciable ribbing. These attractive compact apples are rock hard in my hand with a stripey red blush. Tiny, distinct tan lenticel dots lend a visual accent.