Aluminum

Aluminum was an elemental material found in the Realms.

Properties
Aluminum appeared as a silvery-white metal, appearing very similar to platinum. It was extremely light for a metal, and in its pure form weighed per.

Availability
The Elemental Store of Karsus Enclave sold pure elemental aluminum for 3 gp per.

Spinel gems were made up of crystalline manganese oxide and aluminum.