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
Simple commodity production amalgamated, in order to become tradeable assets in the process of capital accumulation. The ideology of the rising bourgeoisie typically emphasized the benefits of privately owned property for the purpose of wealth creation and industriousness. Marx refers to this process as the primitive accumulation of capital, a process which continues particularly in developing countries to this day. Typically, previously independent producers on the land are proletarianised and migrate to the urban centres, in search of work from an employer. Simple commodity production nevertheless continues to occur on a large scale in the world economy, particularly in peasant production. It also