Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
6.30-6.392.55-2.65
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
[001] good, [210] distinct
[1010] Poor
Mohs Hardness
3-3.55-6
2
10
👆🏻
Chemical Composition
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.