Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with a bright...

Hoards of ancient coins can provide a wealth of information about the history of a region. By studying the dates of the coins in a hoard,...

Central bank gold holdings can be sold to suppress the price of gold in a number of ways. One way is to sell gold directly to the market,...

The metal content of ancient coins can be analyzed using XRF and LIBS in order to determine the source of the metals. XRF (X-ray...