General Information:
Chemical Formula:As(S,Se)2
Composition:(Molecular Weight = 162.50 gm)Arsenic 46.11 %
AsSelenium 24.30 %
SeSulfur 29.60 %
S
Empirical Formula: AsS1.5Se0.5
Environment:Sublimate of burning sulfide ores in a mine fire.
Locality:United Verde Mine, Jerome, Arizona, USA.
Name Origin:Named for the locality
Physical Properties:
Color:cherry red, red, or black.
Streak:reddish black
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