Courtesy: Quora. Is it possible that the moon core is full of diamond and gold? 16 Answers Majoj , PhD Physics, Adam Mickiewicz University (2008) Answered Fri · Upvoted by Andy Buckley , PhD in particle physics, visiting researcher at CERN, lecturer in physics and Kenneth Sizer , BS physics W&M, MS physics CU Actually, Moon has something better than gold and diamonds ;) It’s not in the core, however. And it’s not a solid body like gold or diamond. It is a helium isotope - He3, that came with the solar wind and got adsorbed in the porous rocks at the Moon’s surface. Several years ago a liter of gaseous He3 was worth over 5000$… Get it? LITER OF GAS. If you liquefy it you get one milliliter… A mere droplet (that actually needs a temperature of -270 Celsius degrees to exist). And still nobody wants to sell it! He3 is used in neutron detectors at the airports, for some medical