Feeds:
Posts
Comments

Posts Tagged ‘aluminum’

“One reason aluminum was so costly [in 1884] was because it was essential to use the highest purity aluminum oxide available, which happened to be corundum…. “The best crystals were being mined commercially in the gravels, stream beds, mountain sides and soils of the Carolinas, mostly in the Cowee River Valley of Macon County, North […]

Read Full Post »