How to smelting copper mineral?
Copper was probably the first metal ever smelted, back at the end of the neolithic period. The green copper ore malachite would have been smelted by accident. Somebody lit a wood fire on a piece of ground where malachite was lying around. So you had carbon, heat and malachite, and the malachite was reduced to copper. Tin was very likely present as an impurity so bronze, a very hard alloy, useful for making tools and weapons would have been formed. Pure copper is fairly soft.
