
Tiffany purchased about half of all of the silver mined at Bingham last year and around 5 percent of gold mined at the facility, said Vania Grandi, vice president of marketing for Precious Metals Copper Group at Rio Tinto — parent company of Kennecott Utah Copper Corp.
Interestingly, what ends up as beautiful, artistic jewelry starts out as a waste byproduct from copper mining. Deseret News