Bronze 1 40 1 1 GenResource TIN COPPER Steel 15 120 1 1 GenResource IRON COAL Brass 10 40 1 1 GenResource ZINC COPPER Spidersteel 20 120 1 1 GenResource SILK MITHRIL Adamantite 30 250 1 1 GenResource MITHRIL STEEL Atlantite 40 200 1 1 GenResource MITHRIL SEAWEED