Definitions for: Realgar

[n] a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic

Webster (1913) Definition: Re*al"gar, n. [F. r['e]algar, Sp. rejalgar, Ar. rahj
al gh[=a]r powder of the mine.] (Min.)
Arsenic sulphide, a mineral of a brilliant red color; red
orpiment. It is also an artificial product.

See Also: arsenic, As, atomic number 33, mineral