Rose gold is an alloy of gold and copper, with higher copper content producing red gold and higher gold content producing pink or rose gold. Silver can also be added to alter the color. Crown Gold is a high percentage of gold and low percentage of copper, while red gold is commonly used in jewelry with a ratio of three parts gold to one part copper. Copper makes the alloy more durable, and rose gold has been used for various applications including musical instruments and tools.
Rose gold consists of an alloy that contains gold and copper in varying percentages. The name comes from the reddish color, due to the copper content. Alloys with higher copper content produce red gold, while those with higher gold content are referred to as pink or rose gold. Crown Gold is an example that uses a very high percentage of gold and a low percentage of copper. Rose gold has also been used for a variety of other applications, such as the construction of jewelry and musical instruments.
A variety of different shades can be achieved by alloying gold with silver and copper. Adding silver tends to make the alloy whiter and copper makes it redder. Altering the ratios of these metals can also produce greenish tints. Rose gold typically contains a high ratio of gold to copper, although sometimes silver or zinc is also used. In addition to altering color for aesthetic purposes, copper is sometimes alloyed with gold to create a more durable metal than pure gold bars alone.
A widespread use of red gold is in decorative jewelry, where a common ratio is three parts gold to one part copper by mass. Since karats are a measure of purity and 24-karat is considered 100% pure, this particular alloy results in 18-karat gold. The rosy red color is often considered aesthetically pleasing, although pieces made with alloys like this are much more resistant to wear and tear than gold alone. Copper is a more durable element than gold, and alloys of the two tend to be a bit stronger.
Crown gold is another specific alloy that takes advantage of copper’s durability. This alloy was originally used to mint gold crown coins in England during the 1500s and is defined as 22 karat gold. A purity of this level corresponds to more than 91% gold and less than 9% copper. This ratio is the highest possible karat value for rose gold before the alloy is generally considered yellow.
Rose gold has also been used to make tools, in which case it will typically be cast as a solid object rather than plated. Sometimes higher copper contents are used for applications like this and a 50% blend of each metal may be used. The exact blend can vary, and rose gold flutes are typically found in nine- to 19-karat gold.
Protect your devices with Threat Protection by NordVPN
