Cadmium
Cadmium is an element, number 48 on the periodic table. 

Cadmium is a conduit for converting infrared light into electricity and emits a charge when lit. Some creatures on Velara III were made up of this substance and considered intelligent beings. They managed to destroy a laser drilling system and also killed an engineer to protect themselves. ()

See also 
 Meeseian

External link 
 

Elements
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