Algobarium

Algobarium (symbol Ab) is a chemical element, atomic number 115 on the periodic table.

Characteristics and history
Algobarium, in its most stable form, has an atomic mass of 305, and was discovered by the Humans for the first time on Martian Colony 3 in the year 2015. This metal is part of the trans-uranic series of heavy elements. 

Background
In real-life science, element 115 has yet to be positively discovered. A placeholder name based on its number, "ununpentium", has been suggested to document the possible synthesis of this substance. Some models of theoretical science have stated that heavy elements on this scale cannot exist in nature. Subspace science mentioned in Star Trek may account for the contradiction of this being a resource on other worlds, as well as any possible relation to barium, which is another aspect of this fictional material that has not been borne out in real-life study.