General Information:
Chemical Formula:
Pb14(As,Sb)6S23
Composition:
(Molecular Weight = 4,181.50 gm)
Antimony 5.82 % Sb
Arsenic 7.17 % As
Lead 69.37 % Pb
Sulfur 17.64 % S
Empirical Formula:
Pb14As4Sb2S23
Locality:
Binnental, Valais, Switzerland.
Name Origin:
Named after H. Jordan from Saarbrucken.
Physical Properties:
Cleavage:
[010] Distinct
Color:
lead gray.
Density:
5.5 - 6.4, Average = 5.95
Diaphaniety:
Opaque
Habits:
Pseudo Hexagonal - Crystals show a hexagonal outline., Globular - Spherical, or nearly so, rounded forms (e.g. wavellite)., Granular - Generally occurs as anhedral to subhedral crysta ls in matrix.
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
black
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