General Information:
Chemical Formula:
As8S9
Composition:
(Molecular Weight = 887.97 gm)
Arsenic 67.50 % As
Sulfur 32.50 % S
Empirical Formula:
As8S9
IMA Status:
Approved IMA 1984
Locality:
TL: Chile, Alacran, Pampa Larga
Physical Properties:
Cleavage:
[???] Indistinct
Color:
red or orange yellow.
Density:
3.4 - 3.46, Average = 3.43
Diaphaniety:
Transparent
Hardness:
1.5 - Between Talc and Gypsum
Luster:
Adamantine - Greasy
Streak:
orange
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