Gold
Gold
Gold is a soft, bright, yellow, natural material that millions of years ago, under tremendous pressure is created in the deeper layers of the crust.
Although gold was first discovered in riverbeds in Asia and Africa, gold today mainly obtained through underground mining. An intensive and difficult process. At a depth of 3000 meters should average three tons of ore mined and processed to an ounce of gold to win. Gold is rare, because this it served as curreny from the sixth century AD.
Only after the first World War, when there was almost no gold anymore, gold as currency lost its function.
Pure gold is naturally a soft metal and therefore difficult to process into jewelery. For hardening, gold can be mixed with bijmetalen as silver and copper, thus created the so-called gold alloys.
In Europe, the quantity of pure gold contained in a piece of jewelry expressed in thousandths. Thus, pure gold, known as 24 karat gold, one thousandth of 1000. 18 carat gold for pure gold is 0.75 part, gives it a value of 750 thousand. The "rest" is usually silver or copper.
Through various metals derives its gold shades. Red Gold is created by the addition of copper and white gold by either adding alloy or palladium.
1.14 carat (585/1000)
2.18 carat (750/1000)
3.20 carat (833/1000)
4.22 carat (916/1000)
Although gold was first discovered in riverbeds in Asia and Africa, gold today mainly obtained through underground mining. An intensive and difficult process. At a depth of 3000 meters should average three tons of ore mined and processed to an ounce of gold to win. Gold is rare, because this it served as curreny from the sixth century AD.
Only after the first World War, when there was almost no gold anymore, gold as currency lost its function.
Pure gold is naturally a soft metal and therefore difficult to process into jewelery. For hardening, gold can be mixed with bijmetalen as silver and copper, thus created the so-called gold alloys.
In Europe, the quantity of pure gold contained in a piece of jewelry expressed in thousandths. Thus, pure gold, known as 24 karat gold, one thousandth of 1000. 18 carat gold for pure gold is 0.75 part, gives it a value of 750 thousand. The "rest" is usually silver or copper.
Through various metals derives its gold shades. Red Gold is created by the addition of copper and white gold by either adding alloy or palladium.
1.14 carat (585/1000)
2.18 carat (750/1000)
3.20 carat (833/1000)
4.22 carat (916/1000)