Mithril is produced with a 2 stage process.

First off, the ore needs to be refined in a blast furnace. this yields a more pure ore. After that, it is alloyed with 4 silver and 1 flux (Ratio 1:4:1) this creates 4 ingots. Mithril ore is rare, but you get a decent sum of ingots through it.

Mithril is superior to diamond level tools. and is far ligher than any other metal. Weight Decrements are halved.