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
Locality:
Andreasberg in the Harz Mountains, Germany
Name Origin:
From the Greek, pyr, "fire" and stilpnos, "shining."
Physical Properties:
Cleavage:
[010] Perfect
Color:
hyacinth red or orange red.
Density:
4.25 - 5.94, Average = 5.09
Diaphaniety:
Translucent
Habits:
Acicular - Occurs as needle-like crystals., Crystalline - Fine - Occurs as well-formed fine sized crystals.,
Hardness:
2 - Gypsum
Luster:
Adamantine
Streak:
orange yellow
More details...