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Brass
is an alloy of copper and zinc. Various types of brass are
called bronzes, despite their high zinc content.
Man
has known brass since prehistoric times, long before zinc
itself was revealed. It was produced by melting copper
jointly with calamite, a zinc ore. During this procedure,
the zinc is extracted from the calamite and instantly mixes
with the copper. Pure zinc, on the other hand, is too
reactive to be formed by ancient metalworking techniques.
Prince's
metal or Prince Rupert's metal is an alloy of 75%
copper and 25% zinc, which resembles brass.
The alloy was named in honor of Prince Rupert of the
Rhine.
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