Adamantium can be affected on the molecular level...
Ie. Magnetism... Vibranium... Affect it. It was coined as the most indestructible thing on earth iirc. However that was what 20 or 30 years ago.... And it isn't limited to earth products anymore...
Btw virtually indestructible is to the wielder. For example diamonds could not be broken by a normal human with just about anything he can get his hands on.... We also used to dig up diamonds... But now have the science to create a
Diamond from peanut butter. (carbon based)
Everyone says the are invincible.... Unstoppable... Etc...
That's why we retcon.