General Information:
Chemical Formula:
Ag3SbS3
Composition:
(Molecular Weight = 541.55 gm)
Silver 59.75 % Ag
Antimony 22.48 % Sb
Sulfur 17.76 % S
Empirical Formula:
Ag3SbS3
Name Origin:
From the Greek, pyr and argyros, "fire-silver" in allusion to color and silver content.
Physical Properties:
Cleavage:
[1011] Poor
Color:
deep red or red gray.
Density:
5.85
Diaphaniety:
Opaque to translucent
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Crystalline - Poor - Occurs primarily as crudely formed crystals., Prismatic - Crystals Shaped like Slender Prism s (e.g. tourmaline).
Hardness:
2.5 - Finger Nail
Luminescence:
None.
Luster:
Sub Metallic
Streak:
cherry red
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