its the first type of brass out there probably starting during the 1st millennium BC
my take on use of brass is eating basiclly a cooks reason to smith, plates and cups w/e cause germicidal propertys, also gildeings mabye and of course the almighty curio, can make armor and swords but prob simular to bronze
Brass is an alloy of copper and zinc and, when it was first developed, methods for producing metallic zinc were unknown. Metallurgists wishing to produce brass thus used calamine (actually a mixture of the virtually indistinguishable zinc ores smithsonite and hemimorphite) as the zinc component of brass. The resulting brasses, produced by heating a mixture of copper and calamine to a high temperature for several hours (allowing zinc vapor to distill from the ores and permeate the metallic copper), contained a significant amount of slag material resulting from the non-zinc components of calamine. The use of ore rather than metallic zinc also made it difficult to accurately produce the desired final proportion of copper to zinc
so new ore calamite
at crucible add mabye 2 calamite 2 copper (3/7 calamite 4/7 copper) q and amount varys fairly widly mabye and always get slag
also there is an iron ore Sphalerite that has zinc so my idea here is you put Sphalerite in kiln get iron bars take the left over rock (idk call it calamite) and then can use for brass