Gold costs were about $317 per troy ounce in 2007, but these can vary widely depending on mining type and ore quality; global mine production amounted to 2,471.1 tonnes. After initial production, gold is often subsequently refined industrially by the Wohlwill process which is based on electrolysis or by the Miller process, that is chlorination in the melt. The Wohlwill process results in higher purity, but is more complex and is only applied in small-scale installations. Other methods of assaying and purifying smaller amounts of gold include parting and inquartation as well as cupellation, or refining methods based on the dissolution
Purity (novel) Reporter quoted Showtime CEO David Nevins as saying that after Craig's commitment to the 25th James Bond movie, the Purity adaptation was still on track. "He's doing "Bond" first and I can't say anything about what I know or don't know about "Bond", [but] It's possible it may not shoot until 2019." Purity (novel) Purity is a novel by American author Jonathan Franzen. His fifth novel, it was published on September 1, 2015, by Farrar, Straus and Giroux. The novel is composed of six sections that focus on several different characters and tells the tale of Purity "Pip" Tyler and