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
1 The Cacao Bean (the currency of the Aztecs). Wiki page on the Cacao (or Cocoa bean: http://en.wikipedia.org/wiki/Cac...) 2  Aztecs: Trade, Economy and Merchants: http://library.thinkquest.org/16...  The Aztec trading system: http://socyberty.com/history/the...