Copper chemical composition | Gindre
NOTE: the balance of the other elements (excluding copper) is defined as the sum of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, 0, P, Pb, S, Sb, Se, Si, Sn, Te and Zn, excluding the other elements for which the value is already indicated. (1) Including silver, up to a maximum of 0.015%. (2) An oxygen content of 0.060% is permitted, with a prior agreement beteween the seller and the buyer.Composition Analysis of Michigan Copper | ancient america,Most of the ore available on Cyprus is of chalcopyritic composition, and relics of sulfides are quite difficult to completely remove, yet this mixed sulfide does not occur in the copper ingots.”Copper - Mine Engineer.Com,Copper is one of the most important metals, is used widely in electrical equipment, wiring for homes and business, alloys, coatings and computer chips. Native copper is not a important source of copper, since it is relatively scarce.