Etherium

Etherium crystals in their raw form can be found on planet Erebus. Etherium is by it's composition similar to super dense water ice. But unlike water ice is also extremely light and does not thaw. Etherium is an amorphous material that can be shaped by pressure into different forms, still containing it's high resistance to pressure and temperature changes. Pure Etherium sheets are used to produce high density focusing lens and Gardinium fuel cell casings.