Mineral

Living objects and inert matter: rocks like Geodude, magnets like Magnemite, gears like Klink, a key ring (Klefki), a sword (Honedge) and a teapot (Sinistea). Porygon, a computer program, belongs to this group as well.

The Mineral egg group has 84 species, 57 of which belong to this group alone. The group it shares the most species with is Amorphous, with 7. Between them they can breed with 652 different species, Ditto included. All of them can breed with Ditto, and for the 32 genderless ones it is the only possible partner. Of these, one is always female, and two of the same gender cannot breed with each other even if they share a group.