10 Most Expensive Materials in the World - Bullion For Less 10 Most Expensive Materials in the World | Page 11

Antimatter
($62.5 trillion
per gram)
Opposite of normal matter is
Antimatter. The sub-atomic
particles of antimatter have
properties opposite those of
normal matter. The electrical
charge of those particles is
reversed. Antimatter was
created along with matter after
the Big Bang, but antimatter is
rare in today's universe.