The miners had been stuck since Thursday in the wildcat Cabeza de Negro mine in southern Peru.

CNN: Peru: Nine miners rescued after six days underground

On Jan. 15, Wheaton announced it will acquire interests in the Bajo de la Alumbrera gold-copper mine in Argentina and the Peak gold mine in Australia.

FORBES: Magazine Article

There was also little damage from the supply side as a dip in scrap and the swing to net de-hedging outweighed a modest rise in mine production.

FORBES: Silver Institute: Silver Investment Rises In 2012 But Fabrication Dips

After her 1953 coronation, she embarked on numerous official trips, oversaw state openings of parliament, welcomed visiting leaders such as President Eisenhower, Charles de Gaulle and Nikita Khrushchev, and toured a coal mine.

CNN: Elizabeth II: Young queen who grew into a modern monarch

Last year De Beers failed in its takeover attempt of Argyle, an enormous Australian mine that supplies the increasingly productive gem-polishing industry in India.

FORBES: Fracture Lines

Debswana Diamond Company, a joint venture between the government of Botswana and De Beers, recently launched the Cut-8 expansion project at Jwaneng mine, the largest ever investment in Botswana.

FORBES: De Beers Diamond Sales Up 53 Percent

De Beers is still renegotiating the terms of an 18-year lease on the Jwaneng mine, in southern Botswana, which is due to expire at the end of this month.

ECONOMIST: The diamond cartel