General Information:
Chemical Formula:As2S3
Composition:(Molecular Weight = 246.04 gm)Arsenic 60.90 %
AsSulfur 39.10 %
S Empirical Formula: As2S3
Name Origin:From the Latin, auripigmentum, in allusion to the vivid golden hue.
Physical Properties: Cleavage:[010] Perfect
Color:lemon yellow, brownish yellow, or orange yellow.
Density:3.49 - 3.56, Average = 3.52
Diaphaniety:Transparent to translucent
Habits:Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Massive - Fibrous - Distinctly fibrous fine-grained forms., Foliated - Two dimensional platy forms.
Hardness:1.5-2 - Talc-Gypsum
Luminescence:None.
Luster:Pearly
Streak:pale yellow
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