Of the properties of weapons; magical over normal?

[Paradus]

Greetings everyone.

I write here to ask a question that has laid rest in my mind for quite some time.

As it is known various weapons in arda (especially elven design) have somewhat supernatural properties when compared to an ordinary weapon of similar type.

I have always thought of these, specifically elven blades, as having a somewhat stronger edge in combat if you will, i.e can cut and pierce things that may be impossible for an ordinary weapon. This was thanks to the quote in the FOTR during the holding of the door where Boromirs sword clanged harmlessly off the enemies hide even with all his might where sting, who was wielded by someone of much lesser might and strength, managed to puncture the skin.

So this raises my curiosity of wether magical weapons have more penetrative power over normal weapons or not for I am not quite sure on the whole ideal.

cheers.