Precious metals
Primitive man, choosing for decorating – the bright objects, which attracted his attention. He began to look for more suitable material for their attachment, for which purpose man adapts precious metals, those that were found nearby. In areas where the gold nuggets found in sufficiently large and therefore easily detected, it immediately began to use as decorations, as well as for manufacturing frames.

Gold has a nice yellow color, he not exposed to atmospheric influences, resists fire and, although not withstand high temperatures after cooling does not alter the appearance. For this reason, medieval alchemists called gold precious metals. In those days, silver jewelry and frames find a huge demand, in our time, when the air is polluted cities and villages of coal smog, silver is not so fond of, as under the influence of sulfur dioxide, it quickly darkens.
Gold and silver imported into Palestine and used for making jewelry, tableware, as well as objects of worship. Both these metals were intermediate in the exchange, with the first measure passed by weight, and only then began to be used in the calculation of the coin. For many years gold was the main payment instrument. The noble metals – gold and silver – in our days were added platinum-group metals – ruthenium, rhodium, palladium, osmium, iridium and platinum itself. Platinum is widely used in jewelry because of its pleasant smooth color, most often it is used in the manufacture of frames for diamonds, while adding a certain amount of palladium alloy are known as “white gold”. For several years in the jewelry market popular are the products of the white precious metals, especially gold and white. White gold best emphasizes finesse and elegance of jewelry. Any precious stone in a setting of white gold looks noble, aristocratic, and thus does not lose its identity.
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