human
How can I tell the difference between real gold and fake gold?
assistant
Real gold is generally heavier than other metals, has a higher specific gravity, and will have a distinctive color. It may also be marked with a stamp or serial number that indicates its purity. Fake gold is usually lighter in weight, has a lower specific gravity, and often looks duller and more yellowish in color. Additionally, it may not have any markings indicating its purity.