Chromium

Chromium was a rare and valuable mineral that could be used as currency as well as plating for a starship. In the Naboo culture, a ship plated with chromium signified the presence of royalty.

To resist interdimensional shift stress, hyperdrive systems typically required a specific alloy of chromium and titanium. Pure chromium had the ability to block communications.

The armor worn by Captain Phasma of the First Order was coated in chromium salvaged from a Naboo yacht once owned by Emperor Palpatine. The polished finish of that armor was capable of reflecting certain harmful radiations. Phasma's blaster rifle was also coated in chromium.

In the Anoat sector, the Trandoshan Brask, who operated a requisitions depot on Burnin Konn during the Iron Blockade, offered select inventory in exchange for chromium.

Despite its gold-like shine, C-3PO's hull actually had a chromium finish.

Behind the scenes
Chromium features in the non-canon video game Star Wars: Galaxy of Heroes as the middle tier datacard pack.

Appearances

 * The Force Awakens, Part I
 * The Force Awakens, Part V
 * Captain Phasma, Part I
 * Captain Phasma, Part II
 * Captain Phasma, Part III
 * Captain Phasma, Part IV
 * Star Wars: Episode VIII The Last Jedi

Non-canon appearances

 * LEGO Star Wars: The Force Awakens
 * Star Wars: Galaxy of Heroes
 * LEGO Star Wars: The Force Awakens
 * Star Wars: Galaxy of Heroes