About 94% of the six million known compounds contain carbon, far more than any other element. Carbon, in the form of diamond, is the hardest natural material on Earth. Carbon is found in a wide variety of rocks, such as chalk and limestone.
Aztec Gold unknown Gold that can turn you into a unkillable skeleton monster from the movie Pirates of the Caribbean. Elizabeth wore a piece of Aztec Gold around her neck. by Kenshin1387 March 30, 2004
Purple gold (also called amethyst gold and violet gold) is an alloy of gold and aluminium rich in gold-aluminium intermetallic (AuAl2). Gold content in AuAl2 is around 79% and can therefore be referred to as 18 karat gold.