If your life’s ambition is to become very, very rich, consider getting into the business of producing endohedral fullerenes - the world’s most expensive material.
Scientists at Oxford University in the UK announced that a spin-off lab called Designer Carbon Materials is now producing endohedral fullerenes, and they recently sold off their first sample of the material to the tune of $US32,000 for 200 micrograms (1 microgram = one-millionth of a gram), which is about one-fifteenth the weight of a snowflake, or one-third the weight of a human hair.