Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper. 100% silver isn't used as silver alone is too "soft" for producing functional objects such as jewellery.
Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper. 100% silver isn't used as silver alone is too "soft" for producing functional objects such as jewellery.
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