BRONZE
Bronze is an alloy consisting primarily of copper, commonly with about 12% tin and often with the addition of other metals (such as aluminium,manganese, nickel or zinc) and sometimes non-metals or metalloids such as arsenic, phosphorus or silicon. These additions produce a range of alloys that may be harder than copper alone, or have other useful properties, such as stiffness, ductility or machinability. The historical period where the archeological record contains many bronze artifacts is known as the Bronze Age.
Because historical pieces were often made of brasses (copper and zinc) and bronzes with different compositions, modern museum and scholarly descriptions of older objects increasingly use the more inclusive term "copper alloy" instead.[1]
The word bronze (1730–40) is borrowed from French bronze (1511), itself borrowed from Italian bronzo "bell metal, brass" (13th century) (transcribed in Medieval Latin as bronzium), from either
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