Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
5.6-5.764.32-4.48
1
7.18
👆🏻
Fracture
Uneven
Uneven, Subconchoidal, Conchoidal
Cleavage
[001] perfect; [100] distinct
{101}, good; {010}, poor
Mohs Hardness
2.5-33.5
2
10
👆🏻
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)