Thanks for the info! I was about to explain the same thing.
When I was a TIG welder, I used Tungsten (Tungsten Inert Gas-TIG) electrodes.
Tungsten is also a rare earth mineral. Besides welding, its also used for jewelry
Tungsten, I love that stuff, extreme heat tolerance - I use it in an alloy to build my rocket engines, and in jewelry it makes it super strong, light,
and alloyed with other metals quite a nice color.