Originally posted by Isaac_Clark:

Magic weapons and ammo become available after the third boss. Only two craftable magic weapons are currently the Frostner warhammer and the Draugr Fang bow.

Weapons that may deal additional damage of a sort that is due to a vulnerability to that property doesn't make them magical as such.
In as much as any silver weapon will deal spirit damage (including Frostner), I suppose you might call that enchanted but not magical as such. Silver may be anathema to undead and werefolk, but that is more of an inherent property in much the same way as iron was anathema to the feyfolk.
As for the Draugr Fang, that deals Swamp Guck poison, pure and simple and not exactly magical.