Cast gold socket with human
couple
Quimbaya, AD 600-1100
From
Colombia
Various types of Quimbaya gold object, such as
ornaments, lime-flasks, trumpets and helmets, featured human
figures. Men and women are both represented, usually naked except
for adornments such as necklace, earrings, diadem, nose ornaments
and leg bands. Here a woman and a man stand back to back on the
cylindrical socket.
The
Quimbaya used innovative metalworking techniques to produce
outstanding pieces. They cast most objects not in pure gold but in
an alloy of gold and copper, called
tumbaga, which offers a
great advantage in the casting process since it has a lower melting
point than purer metals. Silver, also present in the alloy, occurs
naturally in some gold deposits and was not added
intentionally.
However, the
composition of the alloy may not have been chosen for its technical
properties alone. Depending on the purity of gold or the amount of
copper added, tumbaga
shows a wide range of colour. The different hues obtained probably
had symbolic values among the ancient cultures of present-day
Colombia. Many of the coppery-coloured
tumbaga castings were
then gilded and burnished to restore their golden appearance. This
process would also have helped to avoid superficial oxidation and
corrosion, enhancing their durability.
C. McEwan (ed.), Precolumbian gold, technology, (London, The British Museum Press, 2000)
G. Reichel-Dolmatoff, Goldwork and shamanism: an ico, Medellín, Colombia, Editorial Colina (, 1988)
W. Bray, The gold of El Dorado, exh. cat. (London, Times Newspapers and Royal Academy of Arts, 1978)