General Information:
Chemical Formula:
AgPb4Sb4S10
Composition:
(Molecular Weight = 1,744.33 gm)
Silver 6.18 % Ag
Antimony 27.92 % Sb
Lead 47.51 % Pb
Sulfur 18.38 % S
Empirical Formula:
AgPb4Sb4S10
IMA Status:
Approved IMA
Locality:
Pribram, Czech Republic.
Name Origin:
Named for Vladimir Zoubek (1903-), Czech geologist.
Physical Properties:
Cleavage:
None
Color:
steel gray.
Density:
5.15
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.,
Hardness:
3.5-4 - Copper Penny-Flourite
Luster:
Metallic
Streak:
black
More details...