"Scientists began to seriously ponder the presence of diamonds in space in the l980s, when studies of meteorites that crashed into Earth revealed lots of tiny nanometer-sized diamonds. Astronomers determined that 3 percent of all carbon found in meteorites came in the form of nanodiamonds. If meteorites are a reflection of the dust content in outer space, calculations show that just a gram of dust and gas in a cosmic cloud could contain as many as 10,000 trillion nanodiamonds."
Diamonds in Space
Diamonds in Meteorites Triggered Scientists' Imagination
News Release by NASA and JPL-Caltech
February 2008
http://geology.com/nasa/diamonds-in-space.shtml
Reminds be of a book I read in school. I believe it was H.G. Wells. about a meteorite that was gold or a large portion and the fear was it would wreck the world’s gold standard economy.
It does make you what wonder minerals are out there, known and unknown.
One thought, if diamonds are carbon and oil is too... I wonder if there are Martian oil sheiks?