Comment Comment by shirleyquirk It may not come as a complete surprise that the economics of metals are more complex.Aluminium, was so expensive until the Hall/(that other guy) process was developed, that it was used for jewellery [1].Even today it's expensive and difficult to reduce Al ore to metal, which is a supply side problem.[1]https://www.bellandbird.com/products/aluminum-bangle parent shirleyquirk 3 years ago
Aluminium, was so expensive until the Hall/(that other guy) process was developed, that it was used for jewellery [1].
Even today it's expensive and difficult to reduce Al ore to metal, which is a supply side problem.
[1]https://www.bellandbird.com/products/aluminum-bangle