- step: the gold river washed out, and színítik.
The gold-quartz rocks embedded into tiny particles found in. The rocks mállásakor the precipitation of the fine distribution of gold in the river sand in wearing, where they're washed. Gold deposits and the five part of the world happens. Currently, the main site: South Africa, North America.
- The gold alloys to other metals.
The gold used quickly wear and soft because of the no work can be. Therefore, the gold alloy with other metals, the properties change and alloy materials by adding the items cheaper to do. The added alloy material, mostly of the copper and the silver.
- Good marketing degrees:
The gold alloy in the color gold quantity of good marketing in degrees is determined. This figure shows that the alloy material of the unit of weight in the many thousands of part color gold. e.g. 750, part subtlety means that 1 g in the alloy 0,750 g gold weight. Each country determines how good of objects may be made in the precious metal industry. In hungary in 1937 in force since the stamp act the following gold fine degree and write up: 986, 900, 750, 585, 250.
- The gold fineness of carats in:
In our country, 1867 in front not in parts per thousand, but kara is defined in the goodies. In the time of the gold alloys when 1 brand=1/2 pounds of gold bought a egységül, and it's 24 carats and carats, further 12 szemer broken. So 1 brand= 288 szemer. This time is usually 1 brand 8, 13, and 18 karat pure gold alloy. Hence the used today kara name, which is not to be confused with the gems karátsúlyával. The alloy grit content to indicate the color gold karátszáma was designated as the entire weight to 24 kara in relation to. 18 carat means a 24-carat alloy weight in 18 carat solid gold volume.
- The color of gold depends on the alloy material.
If the alloy material is copper, the alloy red color, and that's what we call rosé gold. White gold you will get when with nickel, silver or palladium in alloys the metal. At first, it combines white gold objects to the expensive platinum metals replace the variety of brilliant jewels to create.
The white gold is much harder than the yellow colour blends you can, therefore, machining more difficult.
- Rhodium coating:
The white gold objects can also be a slight yellowish tint, so the finished objects often called a rhodium layer they used to include that wonderful white light gives the jewellery.
