platinum

Prices have soared 99% this year, outpacing both gold and platinum.

Any coin issued under the laws of any state or any gold, silver, platinum or palladium bullion of a certain fineness, if a trustee keeps physical possession of it, are not included.

Their findings, published in the open-access journal ACS Central Science, clarify why precious metals such as gold, silver and platinum excel in catalytic processes.

Mapplethorpe genuflects at the altar of that icon with a platinum portrait of Warhol, backed by a halo of light and surrounded by silk panels that form a cross.

The advance in prices was led by a notable increase in non-ferrous metal products, driven by sharp increases in prices for unwrought gold, platinum group metals and silver and their metal alloys, Statistics Canada said.