The ancient copper industry in the Sultanate of Oman serves as compelling evidence of an advanced civilisation that evolved into a leading industrial power nearly five thousand years ago. Historical ...

High-altitude discovery: Cova 338, at 2,235 metres, shows repeated prehistoric occupation for copper processing from the early 5th to late 1st millennium BCE. Copper-age evidence: Over 170 malachite ...

The extraction methods currently in use consume a lot of energy and are detrimental to the environment. The method of roasting is particularly dangerous for its practitioners and the environment ...