Two meanings of carat:
1. A non-SI unit of mass: 1 carat = 200 mg
2. A percentage of gold in an alloy: 1 carat=4,166 %
The carats tell how pure the gold is. Pure gold is 24 carat. The fraction of 24 carats that the carat count is would be the fraction of gold in a piece of jewelry. For example, 18 karat gold is 75% gold and 12 karat is 50% gold.
The answer is 58,33 % gold.
None. Fools Gold is iron pyrite, which is not measured in carats, because it is essentially worthless.
In 18 carats of gold, there are 18 parts of gold out of a total of 24 parts. This means that 18 carat gold is composed of 75% pure gold, which translates to 18 parts gold and 6 parts of other metals. Thus, there are 18 gold parts in 18 carats.
22 carats
Chemically pure gold is considered 24 carats. This means that it is 100% gold with no other metals mixed in.
The purity of gold is measured in carats. Carats are also used to measure the weight of precious stones, including diamonds. These are two quite different measurements, and two quite different uses of the same word.
24(k) carats.
185
21.6
24
No, the purity of platinum is measured in percentages. It is typically expressed as 950 or 900, indicating that the metal is 95% or 90% pure, respectively. Carats are used to measure the purity of gold.