Environmental Engineering Reference
In-Depth Information
5
Mining Methods
Vary Widely
From Excavation to
In situ
Leaching
TIN
Native tin is not found in nature. The first tin artefacts date from 2000 B.C. However, it
was not until 1800 B.C. that tin smelting became common in western Asia. Tin was rarely
used on its own and was most commonly alloyed to copper forming bronze. Bronze
flowed more easily than pure copper, was stronger after forming and was easy to cast. Tin
is highly crystalline and during deformation is subject to mechanical twinning producing
an audible 'tin cry.'
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