General Information:
Chemical Formula:
AsS
Composition:
(Molecular Weight = 106.99 gm)
Arsenic 70.03 % As
Sulfur 29.97 % S
Empirical Formula:
AsS
Name Origin:
From the Arabic, rahj al ghar, "powder of the mine;"
Physical Properties:
Cleavage:
[010] Good
Color:
aurora red, orange yellow, or dark red.
Density:
3.56
Diaphaniety:
Transparent to translucent
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Massive - Granular - Common texture observed in granite and other igneous rock., Druse - Crystal growth in a cavity which results in numerous crystal tippe
Hardness:
1.5-2 - Talc-Gypsum
Luminescence:
None.
Luster:
Sub Metallic
Streak:
orange
More details...