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
Ordo Aurum Solis by Melita Denning and Osborne Phillips, made itself evident in the frescos painted by Giotto (1270-1337) and was also incorporated into the construction of the Baptistery at Florence. The initiatory structure of Ordo Aurum Solis consists of three "Halls", preceded by a special training in the "Circle of the Pronaos". The three grades associated with the Halls of the Order are as follows: Various initiatic traditions existed in ancient Greece. These were called "Mysteries". In Greece the Mysteries of Eleusis, Samothrace, Orpheus, and Dionysus were among the most important, and in ancient Rome and across its empire, the Mithraic and