GENERAL KNOWLEDGE..........

10 Most Expensive Materials on Earth
Antimatter - $62.5 trillion/gram
Californium - 252 - $27 million/gram
Diamonds - $55,000/gram
Tritium - $30,000/gramTaffeit - up to $20,000/gram or $4000/karat
Painite - $9000/gram or $1800/karat
Plutonium - $4000/gram
Platinum - $60/gram
Rhodium - $58/gram
Gold - $56/gram