It's rare per pound, but it's not limited in any real sense like bitcoin. Gold is mined to the point where 2% of it is added to the traded/stored amounts. It's

It's rare per pound, but it's not limited in any real sense like bitcoin. Gold is mined to the point where 2% of it is added to the traded/stored amounts. It's pretty much guaranteed to lose value. And then there's this coming soon: http://en.wikipedia.org/wiki/Asteroid_mining http://en.wikipedia.org/wiki/Asteroid_mining > Only 6 elements (ruthenium, palladium, rhenium, iridium, and rhodium) are rarer. I think you forgot to count all the truly rare elements on the periodic table past number 90. You know, the ones that decay in hours, minutes, seconds or microsends.