As an ex player of D&D 3.5, I’m a little bit confused about Adamantine armors and Mithral armors. In 3.5e, they are not magical, it just classic armor with a different material. So they can have magical properties.
However, in 5e, they are considered magic items in some way, but not in other (see the first related question’s accepted answer). So that why I’m here to ask “Could Adamantine armors (and Mithral armors) have magical properties (+1 for exemple) in 5e?”
Are weapons and armor made of Mithral or Adamantine considered magical?