Chromite

met +1 AC, -1 dmg, always masterwork, Steel -2 hardness
Found in: ○ Reddit /r/ DnD Behind the Screen (https://www.reddit.com/r/DnDBehindTheScreen/comments/3odnwh/a_list_of_material_names_for_armorweapons/?st=jcziyfp2&sh=a05492c7)

Type

Metal