What really makes a metal precious ?
If its price than bismuth and tin would be on the list after all they are a lot more pricy than copper,
and also bismuth is probably the coolest metal in the world, the corners of it cool faster forming these geometric shapes and the exposure to oxygen gives it a different colors, I melted this stuff down on a little stove in the garage and then poured it into a smaller metal bowl as it cooled a bit I tilted the bowl to let some of the still hot bismuth drip off to reveal some cool crystal formation, I ended up with a neat bismuth geode, right below is what it looked like before I melted it down.
Hope you got some value from my post,
Thanks for stopping by, your upvote, comments and resteems are truly appreciated.