1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.4 Durability
Not Available
Not Available
1.7 Specific Gravity
1.5 Fracture
Subconchoidal, Brittle, Metallic
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
Cubic perfect on [001], parting on [111]
[001] good, [210] distinct
1.7 Mohs Hardness
1.11 Chemical Composition
PbS
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references