What is the Most Expensive Substance in the World?
There are several extremely expensive substances in the world, and all of them have to do with exotic physics. Historical contenders for the most expensive substance such as saffron, plutonium, gold, and diamond are like dirt in comparison to these. Three categories of material that compete for the most expensive substance are antimatter (especially antiatoms like antihydrogen), at $1,750 trillion US Dollars (USD) per ounce, followed by hafnium and tantalum isomers, at about $480 million USD per ounce, and assorted exotic particles such as bottom quarks, which are in the same league as antimatter. The cost of antimatter has actually come down. In 1999, it was about $62.5 trillion USD a gram ($1.75 quadrillion USD an ounce). The reason antimatter costs so much is that it can only be made in tiny quantities using multibillion dollar particle accelerators. When tremendous amounts of electromagnetic energy is concentrated in one place, both conventional matter and antimatter are spontaneou
