General Information:
Chemical Formula:AgPb4Sb4S10
Composition:(Molecular Weight = 1,744.33 gm)Silver 6.18 %
AgAntimony 27.92 %
SbLead 47.51 %
PbSulfur 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
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