I saw this documentary on discovery and they were talking about metals etc.. This metal called Bismuth only exists at 8.5 parts per billion Gold is even more rare at 4 parts per billion but silver exists 75 parts per billion But silver costs about 300 dollars a pound. But Bismuth only costs 17 dollars a pound yet it is 8.8 times more rare. So how come Bismuth does not cost 2647 dollars a pound? I bought 10 pounds of Bismuth 99.99% for 116.80 bucks just as an investment. Who knows what might happen Bismuth is a rare and strange metall. In the frequency (or better rarity) charts of elements in the earths crust it ranks number 69 of the 75 listed. Only 0.008 ppm (gramms per metric ton) of the earths crust consist of bismuth which is less then for platinum which ranks number 68 with 0.01 ppm. Gold is rank number 71 with 0.004 ppm. This means there is only twice as much bismuth available as gold.