>>42719501>>42719510In general Ground is more of a "behavioral" type like Flying, Fighting, and Dark, while Rock is pretty much exclusively a "physical property" type like Steel and Bug (if you consider "being revived from fossils" a physical property). Ground does occasionally manifest as a physical property type (Palossand, Claydol, Golurk, Runerigus) or an "elemental" type like Water, Fire, and Electric (think Groudon and Landorus).