What kind of gold is 10k cal?

10k gold, or 10 karat gold, is an alloy that contains 41.7% pure gold and 58.3% other metals, such as copper, silver, or zinc. The "10k" designation indicates that out of 24 parts, 10 are pure gold, making it more durable and affordable compared to higher karat golds. It is commonly used in jewelry due to its strength and resistance to scratching. However, its lower gold content means it has a lighter color and less intrinsic value than higher karat gold options.