Would Adamantine Armor be detected by Detect Magic? It's listed in the magic item section, but it doesn't appear to be magical, just made of an exceptional material.
— Gabe D.R. (@gabedr888) April 4, 2018
The adamantine armor that is presented as a magic item is, indeed, a magic item. #DnD https://t.co/1PErUA5bo3
— Jeremy Crawford (@JeremyECrawford) April 4, 2018