Bismuth and Tellurium
Bismuth and tellurium are the only two metals which have abundances less than 10-8 by mass part (g/g) in the Earth's crust, but which are currently not of high economic value.
Read more about this topic: Precious Metal
Bismuth and Tellurium
Bismuth and tellurium are the only two metals which have abundances less than 10-8 by mass part (g/g) in the Earth's crust, but which are currently not of high economic value.
Read more about this topic: Precious Metal