Translations:GregTech 5/Mining and Processing/657/en

Manual Processing
The most basic form of ore processing is the old classic "just throw it into a Furnace" method we all learned back in Vanilla. However, even just at this level, more can be done. Ore blocks can be broken with a rather than a Pickaxe to drop Crushed Ore, and Crushed Ores of basic metals like Copper, Tin, and Iron can be smelted into 10 metal Nuggets, slightly more than one full Ingot. Should you need Dusts, such as Redstone Dust, Crushed Ore can be crafted with a Hammer to produce Dirty Dusts, and Dirty Dusts can be thrown into a Cauldron full of Water to produce Dusts. This is the basic source of Redstone Dust.