Precious metal "precious" metal can also be determined by high demand or market value. Precious metals in bulk form are known as bullion and are traded on commodity markets. Bullion metals may be cast into ingots or minted into coins. The defining attribute of bullion is that it is valued by its mass and purity rather than by a face value as money. The level of purity varies from issue to issue. "Three nines" (99.9%) purity is common. The purest mass-produced bullion coins are in the Canadian Gold Maple Leaf series, which go up to 99.999% purity. A 100% pure bullion is
Aurum, Nevada - a local man named Simon Davis. Eventually, the mining activities in the area shut down permanently. The post office closed for the last time on May 31, 1938, and the area has been uninhabited since. Aurum, Nevada Aurum is a ghost town in White Pine County, Nevada, United States. Originally known as "Silver Canyon", after the nearby geographical feature, Aurum was founded as a mining community in 1878. When a post office opened on April 4, 1881, the community received its present name, Aurum. Aurum had two neighborhoods, defined by differing elevation. In the higher sections of the community,