Board Thread:Q & A/@comment-24749544-20170628092320/@comment-27265101-20170628222005

Adamantine is tr hardest metal ever created by the goods. Infact the blade Cronus used to destroy his father's Ouronus was made entirely of adamantine.

It also inspired Marvel's creation of adamantium, which coats Wolverines bones and claws and is what Cap's shield is partially made of.