A GregTech addon. This mortar is made from Refined Iron and Stone Bricks. It is capable of grinding harder metals such as brass and iron. It also has a much higher durability than the simple single use Flint Mortar.
It can be used 128 times before it wears out and does not stack. When the Iron Mortar breaks it leaves four Tiny Pile of Iron Dust.
|Coal||Hydrated Coal Dust||Yes|
|Gold Ingot||Gold Dust|
|Clay (Block)||Clay Dust||Not Ball|
|Copper Ingot||Copper Dust|
|Tin Ingot||Tin Dust|
|Silver Ingot||Silver Dust|
|Electrum Ingot||Electrum Dust|
|Brass Ingot||Brass Dust|
|Iron Ingot||Iron Dust|
|Refined Iron||Iron Dust|
Ratios are 1:1