- In the fourth century A.D., the Greeks used the weight of 24 seeds from the carob tree on a scale
balance to equal the weight of a small pure-gold coin. The Greek word for carob was karat, which is why we say today that
pure gold is 24-karat gold
- Gold is the most malleable metal.
- One cubic foot of gold weighs about half a ton.
- Gold is the most ductile of all the metals.