Gold

November 10, 2012

Ancient gold treasures found in Thracian tomb

Bulgarian archaeologists have unearthed bracelets with snake heads, a tiara with animal motifs and 100 buttons in a hoard of ancient golden artefacts uncovered during excavations.

November 10, 2012

Global copper production under stress

Copper mining has become an especially capital intensive industry - the average capital intensity for a new copper mine in 2000 was between US$4,000 - 5,000 to build the capacity…

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