1 Physical Properties
1.2 Tenacity
1.6 Solubility
Not Available
Not Available
1.10 Durability
Not Available
Not Available
1.13 Specific Gravity
1.21 Fracture
Subconchoidal, Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.22 Cleavage
Cubic perfect on [001], parting on [111]
Not Available
1.23 Mohs Hardness
1.24 Chemical Composition
PbS
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)