Have too much Copper Ingots laying around?

Don't have enough Iron or Gold?

Have Silk Touch but no Fortune 3?

Well here's the perfect solution. An Ore Sieve.

An Ore Sieve turns Raw Copper, Iron and Gold into two of their respective Dusts which you can then throw into the furnaceto get some ingots. Basic Ore doubling without the trouble.

You can also use it on some Silk Touched Copper, Iron and Gold Ore to get some extra raw pieces out of them. More pieces then you would get by just mining it but less then if you were to use a Fortune 3 Pickaxe.

Ore Sieve Recipe: 3 Copper Ingots in a bucket formation.