In nickel and copper deposits platinum group metals occur as sulfides (i.e. (Pt,Pd)S), tellurides(i.e. PtBiTe), antimonides (PdSb), and arsenides(i.e. PtAs2), and as end alloys with nickel or copper. Platinum arsenide, sperrylite (PtAs2), is a major source of platinum associated with nickel ores in the Sudbury Basin deposit in Ontatio, Canada. The rare sulfide mineral cooperite, (Pt,Pd,Ni)S, contains platinum along with palladium and nickel. Cooperate occurs in the Merensky Reef within the Bushveld complex, Gauteng, South Africa.
The largest known primary reserves are in the Bushveld complex in South Africa. The large copper–nickel deposits near Norilsk in Russia, and the Sudbury Basin, Canada, are the two other large deposits. In the Sudbury Basin the huge quantities of nickel ore processed makes up for the fact that platinum is present as only 0.5 ppm in the ore. Smaller reserves can be found in the United States, for example in the Absaroka Range in Montana. This is also shown in the production of 2005. In 2005, South Africa was the top producer of platinum with an almost 80% share followed by Russia and Canada.
This Peretti’s elliptical form presents an intriguing figure. This ring of pave diamonds set in platinum vales $6,800. And the original designs copyrighted by Elsa Peretti. The carat total weight is .80.