system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What does a 9 carat gold mean


assistant
Pure gold with no additives is knows as 24 carat gold. An item marked as 9 carat gold contains 9/24th (or 37.5 percent) of pure gold and the rest are additives, typically a mix of silver, copper, zinc, etc.