Precious metal Precious metal A precious metal is a rare, naturally occurring metallic chemical element of high economic value. Chemically, the precious metals tend to be less reactive than most elements (see noble metal). They are usually ductile and have a high lustre. Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best known precious metals are the coinage metals, which are gold and silver. Although both have industrial uses, they are better known for their uses in art, jewelry, and
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