Vesbium
Vesbium , noun
[New Latin, from Latin Vesuvius, contr. Vesbius, Vesuvius.]
It is not a recognized element. Actual identity?
(Chemistry) A rare metallic element of which little is known. It is said by Scacchi to have been extracted from a yellowish incrustation from the cracks of a Vesuvian lava erupted in 1631.