History

 
Omnium has been featured in Marvel Comics from time to time, popping up in various places whenever someone needs something strong but doesn't want to resort to adamantium. Omnium, however, is even less malleable than adamantium. 

For instance, an acolyte of Magneto had the power to change either himself or another person into an aware omnium statue. 

In X-Men vol. 2, #11, Maverick fights a super soldier with omnium skin. 

Whiplash used spring-loaded retractable omnium steel cables. 

The Vault, a U.S. Government facility for imprisoning superhumans, was made of omnium as well as adamantium.